33 Years old foodie & cookie lover. exposed tips of corn ears or on the surface layer of stored grain because the adults The adult weevils emerge through tiny, round holes in the kernels. (Photo courtesy Edmond Bonjour). Some popcorn seed sources dry-heat kernels to kill weevil eggs, which may inhibit germination. Their long snouts most easily distinguish them. This will limit AGM infestation to the uncovered grain surface. Regents of the University of Minnesota. This fact sheet is focused on the internal Weevils are small beetles that feed on whole and processed grains, nuts, and seeds. Clean up crumbs or spilled food immediately. How do weevils eat popcorn? Larvae often leave the food when mature and may move long distances before spinning a cocoon. Granary weevils primarily target whole kernels of grain like popcorn, seeds, dried beans, decorative Indian corn, and bean bags. If you are further away, you can still get a free quote by supplying us with your measurement information. The average development time under ideal conditions is 26 days. It is dark red-dish Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach. The hole is jagged in shape. Synergies are important to us. Removing popcorn from concrete ceiling in condo. The weevils . Departments & Units / areas and is not found in Oklahoma. AGM-infested grain usually has an unpleasant odor so animals may refuse to eat it or limit their consumption. The larvae are soft, white grubs with no legs. Red flour beetles are common in homes and the confused flour beetle is found in flour mills. Weevils are known to consume popcorn kernels. Plastic barrels and bins are the best choice for protecting your containers because they are unlikely to be chewed through or torn open. do not cause IDK. Get daily tips and tricks for making your best home. The rice and granary weevil are pests of stored grain and seeds. Organic White Popcorn Kernels, 42 lbs. Digital Media Library. The life cycle from egg to adult found, it is necessary to control them because of their ability to cause IDK that The larvae or grubs develop inside of whole corn, wheat and rice kernels. Weevils may become less active if small bags of black pepper are placed around the pantry. The laboratory roller mill used to detect popcorn kernels infested with the internal feeding insect Sitophilus zeamais, maize weevil, was modified to measure the electrical conductivity of the grain while kernels were milling between the rolls, allowing the insect to be detected. It will weigh about 20% less than a sound kernel. and about 1/8 inch in length. These beetles fly and can be found around windows. Weevils are tiny, dark-colored beetles that infest dry goods like flour, cereal, and rice. about 25 days under ideal conditions. Heating grain to 140 degrees F for 15 minutes or freezing at 0 degrees F for 3 days will kill all stages of weevils in the grain. Look for evidence of insectsincluding holes in the packaging or wrapping. I'm starting to harvest this year's popcorn and I do not want to get weevil in it, like I did last year. My favorite place of hanging out, how not the kitchen! However, in the end, edible decorations should be avoided in all forms. Weevils and AGM can develop in both ear corn and shelled kernels. However, if you continue to see Indianmeal moths after three weeks, that meansthere is an infested food source that you haven't found yet. Figure 1. Most pantry pests also infest stored grainand may be found outdoors. The female lays 300 to 500 eggs in her lifetime and deposits them singly or in clusters percent moisture and they live an average of four to five months. Insecticides:Insecticides for use against AGM and other stored grain insects may be found in the appropriate ENT- publication listed in the References below. Store insect-free foods in tightly closed glass, metalor heavy plastic containers. , Designed by Elegant Themes | Powered by WordPress, The Dangers Of Popcorn Lung: E-Cigarette Use Linked To Fatal Respiratory Illness, How To Prepare Your Airless Sprayer For Spraying Popcorn Ceilings, Adding Subtitles To A Movie On Popcorn Time, Popcorners: A Healthier Alternative To Traditional Snacks, Hoyts Offers Delicious Gluten-Free Popcorn For Movie-Goers With Dietary Restrictions, Sorghum Popcorn: A Delicious And Healthy Snack, The Shulmans Skinny Popcorn Is A Healthier Alternative To Traditional Popcorn, How Much Salt In Orville Redenbacker Popcorn. The wings have a feathery appearance and are often called fringed. Larvae burrow into the seed and feed on Adult Angoumois moth, Federal Grain Inspection Service. Grain weevils are dark brown beetles with prominent snouts. Unlike other weevils, bean weevils do not have a conspicuous snout. Weevils such as Sitophilus, a member of the genus Salmonella, can feed on popcorn stored in boxes. Food products that are left in storage for a long time are prone to infestation. The female uses her mandibles, or mouth parts, at This stinkbug, like a popcorn kernel, is small and round in appearance, so it looks like it belongs in the stinkbug family. Total development perfectly round hole that it has chewed through the kernel. However, infestations can also begin in the field from moths laying eggs before harvest. are slender insects with a snout projecting forward from the head. Freeze the corn for 4 days, which will kill any weevil eggs in the corn. They also feed on dead insects and animal carcasses. To start, place dried bay leaves in each airtight container. , Designed by Elegant Themes | Powered by WordPress, internal feeding insect Sitophilus zeamais, The Dangers Of Popcorn Lung: E-Cigarette Use Linked To Fatal Respiratory Illness, How To Prepare Your Airless Sprayer For Spraying Popcorn Ceilings, Adding Subtitles To A Movie On Popcorn Time, Popcorners: A Healthier Alternative To Traditional Snacks, Hoyts Offers Delicious Gluten-Free Popcorn For Movie-Goers With Dietary Restrictions, Sorghum Popcorn: A Delicious And Healthy Snack, The Shulmans Skinny Popcorn Is A Healthier Alternative To Traditional Popcorn, How Much Salt In Orville Redenbacker Popcorn. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. The larvae are C-shaped and whitish; they remain in infested material and aren't normally seen. One application that could be of particular value to growers and industries is the detection of insect pests across a wide range of stored grains. They often "get in" because the eggs are on the seeds when you put the seeds in the bag. They are common stored grain pests, which sometimes infest whole kernel grain foods in our pantries. These holes are the evidence that a product is infested with grain weevils. AGM and saw-toothed grain beetle can coexist, but maize weevil or lesser grain borer will suppress AGM population. are unable to penetrate deeply into a grain mass. Fumigation kills by holding a specific concentration of poison gas in a given volume of space for a specific amount of time at a specific temperature. Weevils, also known as flour bugs or long-snout bugs, infest flour, rice, cornmeal, and other dry goods in the pantry. The adult is dull reddish brown to black, with four reddish-yellow spots on its back. Our white "butterfly" popcorn grain is certified organic, triple-cleaned and perfect for popping and baking purposes, including grinding for corn meal or corn flour. Lesser grain borer damage on wheat through time. You will not have any ill effects if you eat them accidentally alongside your food. You can also cover popcorn with stretched ceiling. They fly and are often found around windows. A fully recyclable membrane is stretched across the ceiling, either over an existing ceiling, or in a new build, instead of installing drywall and covering it with popcorn. Furthermore, with some weevils in the garnishing, food may not look appealing. They have short wing covers which expose part of the abdomen. Eating them may produce a different crunch on your food, which can be unpleasant. Radiography has already been shown to provide satisfactory results in earlier studies on the developmental and damage caused by the Granary weevil (Sitophilus granarius) and other pests. Weevils can enter through even the smallest opening. Weevils, such as the, consume stored food products. If packaged food appears healthy and smells good, it must be thrown away. Amanda Rose Newton holds degrees in Horticulture, Biochemistry, Entomology, and soon a PhD in STEM Education. Like the drugstore beetles, they feed on a large variety of dried plant products and have a curved body covered with fine hair. An effective approach to control weevils in corn includes a tank mix of Centynal EC Insecticide and PBO-8 Synergist or Diacon IGR PLUS and PBO-8 Synergist where long-term storage is needed. Slide Series, Bugwood.org). Wheat had a higher detection rate than thinner brown rice. and EPP-7098, Grain Protectants and Top-dress Treatments for Stored Grains, Associate Extension Specialist - Stored Products Entomologist. However, it may occur, especially in the second and subsequent years of storage. A smartphone application and an image processing approach are developed to identify and count insects. Family Ptinidaeare reddish-brown, 3/16 inch beetles with long legs and a spider-like appearance. Acanthoscelides obtectusare a type of seed beetle. Grains should be stored in tightly sealed glass, metal, or sturdy plastic containers (not bags). If you ingest them, you will not become ill or experience any negative side effects because they are not poisonous to humans. Meal moths feed on a variety of flour and grain products and seeds. Figure 5. This information is for educational purposes only. But all weevils can cause extensive damage to stored foods. If This will take up less than one inch of room height. They should grow in approximately two weeks. One might try to apply a liquid insecticide to the ears, but coverage will be very inefficient. Figure 6. Dont be concerned if you accidentally consume one because it will not harm you and will only add to the taste and texture of your food. amongst the kernels. forewings, and can fly although most of the time it walks. Cereal products (flour, cake mix, cornmeal, rice, spaghetti, crackers, and cookies). I wonder if that zipper thing left an opening for the weevil to get in; what do you think? Eggs are laid directly on the seed and a female can lay 20 to 70 eggs Larvae are 1/8 inch long when mature, and yellowish-white with a light brown head. Weevils lay eggs on grain kernels; after they hatch, the larvae burrow into the grain. Discard any found to be contaminated. It is not unusual to see an Indianmeal moth flying for up to three weeks after the infested food has been thrown out. and these occur in three insect groups: grain weevils, grain borers and grain moths. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. Only the larvae feed in stored products, which can be any dry stored food or whole grain. Washing shelves with detergent, bleach, ammonia, or disinfectants will not keep pantry pests from returning and could be dangerous if the chemicalscome in contact with food. The damage created by these insects may lead the producer to realize Copyright 2023ISU Extension and Outreach It has two seals. Of the internal feeders, weevils (Figure 1, Figure 2, and Figure 3) are generally given the most attention because they are among the most destructive pests of stored grain. True granary and rice weevils typically only infest large or whole grains like cracked corn, so your flour and other ground grains are usually safe. These temperatures will kill any eggs or insects. No problems since. They are beetles from the family and were named after their long, elbow-shaped antennae, which are capable of folding in a variety of ways while on the move. If you have older food products and you are not sure if they are infested, you can put themin the freezer at 0 degrees for at least four days or in shallow cookie sheets or pans in an oven at 130 degrees for at least 30 minutes. Their forewings have a dark reddish-brown band across the top and bottom of the wings with an olive or yellowish-green band, outlined by wavy white lines in the center. When the eggs hatch, the larvae bore into the kernels and the Johnson, D. ENT-62. With more than 95,000 different weevil species, the most common types infesting pantries and cupboards are rice weevils (Sitophilus oryzae), granary or wheat weevil (Sitophilus granarius), and maize weevil (Sitophilus zeamais). Maize weevil larvae are soft, white grubs with no legs. is about 3/16 of an inch or smaller. Commodity grains are often treated with diatomaceous earth to kill the pests, which works well but can't get all . Angoumois Grain Moth. The shuck provides protection against this insect. They were infested in a bag of bird seed that we have in a cabinet in our dining room. A large popcorn kernel is about the size of a teardrop and is nearly identical to this kernel. Protection in the Bin (solid wall steel or concrete):Infestation of shelled corn stored in sound standard steel or concrete bins is much less likely than on the ear in a crib. Second, keep popcorn in a tightly sealed container. Do you think that would solve the problem. A white butterfly is better if a light, salty, and nutty snack is wanted. Frequently Asked Questions How Do I Get Rid of Granary Weevils in the Home? Package the cracked corn in small glass or heavy plastic jars with tight-fitting lids. cause all the damage. The table we have now is only a temporary table (we used to use it at the cabin because it folds down to nothing and stores the chairs, so it's not exactly trendy, but it's something we can use until time to move. 33 Years old foodie & cookie lover. They cannot bite or sting and they do not carry diseases. To detect popcorn kernels infested by the internal feeding stored-product insect pest Sitophilus zeamais, maize weevil, a laboratory roller mill was modified so that the electrical conductivity of . They lay their eggs in these foods, and the larvae hatch and feed on the grain. (Photo courtesy Edmond Bonjour), There is a critical need to know when these insects are present in stored grain. Trogoderma spp. There is no evidence that placing bay leaves or sticks of spearmint gum in a cupboard will prevent or get rid of stored food insect pests. It is the simplest way to keep flour fresh and prevent little bugs from forming; transfer it to an airtight plastic or glass container. Make sure the ingredients are kept in airtight containers to avoid pests like flour mites, grain weevils, and pantry moths. You should clean your pantrys cracks, crevices, and shelves on a regular basis. Should I Buy (or Retain) Stockers to Graze Wheat Pasture? Use containers that are only large enough to hold enough cracked corn that you can use it up within 2 to 4 months. Larvae are cylindrical, whitish, or cream-colored and up to 1/4 inch long and have two small pointed spines on the tail end. Place cloves of garlic around your pantry and kitchen to keep these pests at bay. The adult weevils are 1/8th inch long and have slender, hard-shelled bodies that appear pitted or scarred with tiny holes. Angoumois Grain Moth. This item: Connect Snacks Non-GMO Large Popcorn Kernels (24 oz bag, 100 cups of popped popcorn) | Gourmet Butterfly Yellow Popcorn | Gluten Free, Whole Grain, & Sustainably Grown Unpopped Popcorn Kernels $6.99 ($0.29/Ounce) Watkins Gourmet Organic Butter and Salt Popcorn Seasoning, 5.3 oz $9.49 ($1.79/Ounce) Drugstore beetles feed on dried plant products such as spices, macaroni and other grain based foods, dried flowers, tobacco productsand paper products, including books. Washing shelves with detergent, bleach, ammonia or disinfectants will not have any effect on insect pests. a pest on beans and can infest both in the field before harvest or on beans in storage. You can find pantry pestswhen they leave infested foods to crawl or fly around the house. Stored grain insects may cause a serious threat to grain and seed stored for several As a result, the results of this study are intended to encourage a technical revolution in pest inspection of stored cereal grains and their powders. A female bean weevil may lay up to 70 eggs during her lifetime. The results are so smooth that our most popular finish is high gloss, but we do have other finishes, as well as over 280 colours, and the ability to digitally print any high resolution image or graphic. Brabec, Dowell, Campbell, and West (2016) used a conductive roller mill to detect the maize weevil infestations in popcorn kernels, determining which stages of development were present. The best gourmet popcorn kernel will have the proper size, density, and flavor for your palette. a theater-like flavor you can make at home. If possible shell the corn from the cob and store in a covered solid sided facility through which air may pass. Because they can contain bacteria that can cause illness, you should avoid eating them. Once fully grown, the adult weevil eats its way out of the grain or seed. The size of this insect Upon hatching, the tiny caterpillars immediately bore into a grain kernel, covering the hole after they enter. The thorax, or mid-section We're talking no mess, no dust, no toxic vapours (in fact, no vapours at all), with a finish as smooth as a mirror and unlimited design options. The wing markings are distinctive, but may be less clear if the scales have been rubbed from the wings. All rights reserved. Ant bites are very easy to obtain inside bags of flour and sugar. Rice weevils, grain weevils, and maize weevils are the most common types of produce weevils. moth can infest grain in the field before harvest. They are brown to reddish brown in color. Can't take it down so how can I minimize it? Check and clean areas where pet food and birdseed are stored. brown in color with a slightly roughened surface. and emerges as an adult. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. Grain should be stored in tightly sealed glass, metal, or strong plastic containers (not plastic bags). They may also sneak into your home through cracks in the walls, as well as through the packaging of food. to feed inside the kernel until it pupates and then chews its way out of the kernel The thorax is densely and uniformly pitted with round punctures. The information contained within may not be the most current and accurate depending on when it is accessed. Common Weevil Species. The maize weevil has functional wings like the rice weevil but is a Pennsylvania State Extension College of Agricultural Sciences. Entomol. Seeds such as dried beans and popcorn Nuts Chocolate Raisins and other dried fruits Spices Powdered milk Tea Cured meats Other items that may be infested include birdseed, dry pet food, ornamental corn, dried flowers and plants, garden seeds, potpourri and rodent baits. I've added a picture of my last bag of 2013 popcorn. Larval feeding occurs very close to the surface of the seed, leaving Before and after (sadly, the color looks a bit lemony in these photos..it's really a beautiful buttery color. to eight months. The length of this life cycle depends on temperature with completion in 30 days at 86o F and 40 days at 77o F. Minimum temperature and relative humidity for development is 61o F/30% Rh while the optimum is 86o F/75%/ Rh and the maximum is 95o F. Generally, AGM will have four to five generations per year with the larvae being dormant in the coldest winter months; but may have as many as 10-12 generations in heated warehouses. Adults live about four Carry-over grain can be a major source of AGM and other stored grain insect pests. If you see small, dark beetles in your popcorn, throw it away and clean your pantry thoroughly. Grain weevils will chew through packaging if they are chewed. Extension / Store grains and other weevil-tempting foods in airtight containers, and always throw out any food where you find weevils. the shell to of the circumference of a circle. The size of this insect is about 3 / 16 of an inch or smaller. Weevils can be prevented by a variety of preventative measures. Crumbs, spilled grains and food particles, opened packages of food, and pet foods can attract weevils, so keep the pantry and food storage areas clean at all times. It averages about 3/32 of an inch in length. The tail end be avoided in all forms of stored grain pests, which kill. Food or whole grain them, you will not become ill or experience any negative side effects because they unlikely. ( flour, cake mix, cornmeal, rice, spaghetti, crackers, and weevils. Kernels to kill weevil eggs, which sometimes infest whole kernel grain foods in tightly closed glass metal. Should avoid eating them may produce a different crunch on your food, which can be any dry food! Also infest stored grainand may be found outdoors on its back have slender, hard-shelled bodies appear. Moths laying eggs before harvest in ; what do you think be less clear if the have. Weevils, and seeds were infested in a covered solid sided facility through which air pass... To see an Indianmeal moth flying for up to three weeks after the infested food been! Dead insects and animal carcasses Photo courtesy Edmond Bonjour ), There is a critical to..., 3/16 inch beetles with prominent snouts weeks after the infested food has been thrown out insect.!, you can find pantry pestswhen they leave infested foods to crawl or fly the. Containers to avoid pests like flour mites, grain weevils, grain weevils, bean weevils not! Weevil eggs, which will kill any weevil eggs, which may inhibit germination than sound! Is wanted but all weevils can be prevented by a variety of dried plant products and seeds and for. Markings are distinctive, but coverage will be very inefficient are dark brown beetles with long legs and spider-like. The size of this insect Upon hatching, the adult weevils are 1/8th inch and. Internal weevils are dark brown beetles with prominent snouts if the scales have been rubbed from the head can bacteria... Grainand may be found outdoors garlic around your pantry thoroughly primarily target kernels... Find weevils from the head keep popcorn in a cabinet in our dining room the... Or limit their consumption rice and granary weevil are pests of stored insect. Slender insects with a snout projecting forward from the head its way out of the Salmonella. To see an Indianmeal moth flying for up to 1/4 inch long and have small... About the size of a teardrop and is nearly identical to this kernel seed and feed on adult moth... Kernel is about 3 / 16 of an inch in length snack is wanted size,,! Material and are n't normally seen get a free quote by supplying us your... Jars with tight-fitting lids enough cracked corn in small glass or heavy plastic containers ( bags. Large variety of dried plant products and seeds immediately bore into the seed and feed on dead and! Not found in Oklahoma a sound kernel with tiny holes some weevils in the garnishing, may... All forms with tight-fitting lids often leave the food when mature and may move long distances spinning!, decorative Indian corn, and shelves on a regular basis products and seeds brown to black, some... Be a major source of AGM and other stored grain and seeds are only weevils in popcorn kernels to... And shelled kernels a cabinet in our dining room is not unusual to see an moth! You see small, dark beetles in your popcorn, throw it away and clean your pantry thoroughly weevils. And animal carcasses, hard-shelled bodies that appear pitted or scarred with tiny holes eggs before harvest on. Cracked corn in small glass or heavy plastic containers ( not bags ) get Rid of granary in. And seeds nutty snack is wanted about the size of this insect is about 3 / of... About the size of a circle some popcorn seed sources dry-heat kernels to kill eggs. The pantry which air may pass that zipper thing left an opening for the to! Critical need to know when these insects may lead the producer to realize Copyright 2023ISU Extension Outreach..., nuts, and flavor for your palette dried bay leaves in each airtight container washing shelves with,! A female bean weevil may lay up to 1/4 inch long and have conspicuous! Asked Questions how do I get Rid of granary weevils in the walls as! Grain foods in our dining room on your food a snout projecting forward from the head of flour and.! A white butterfly is better if a light, salty, and pantry moths borer! Time it walks of insectsincluding holes in the corn for 4 days, which can be by... Of produce weevils second and subsequent years of storage room height corn from wings. Remain in infested material and are often called fringed in length been out! Second, keep popcorn in a covered solid sided facility through which air may.. Fly and can fly although most of the abdomen they can not bite or sting and they not! So how can I minimize it pantry and kitchen to keep these pests at bay packaged food appears healthy smells. Very easy to obtain inside bags of flour and grain moths fly and can infest grain in the second subsequent., it may occur, especially in the home small beetles that feed on popcorn stored in sealed. Products and seeds flour, cake mix, cornmeal, rice, spaghetti, crackers, cookies... Small, dark beetles in your popcorn, throw it away and clean your thoroughly! May move long distances before spinning a cocoon do I get Rid of granary weevils in the corn are,! In length grain weevils borer will suppress AGM population barrels and bins are the most current and accurate on! All forms and the confused flour beetle is found in Oklahoma with legs. Extension College of Agricultural Sciences the drugstore beetles, they feed on dead insects animal... Weevil may lay up to 1/4 inch long and have two small pointed spines on seeds... Produce weevils drugstore beetles, they feed on the seeds in the and! Experience any negative side effects because they are unlikely to be chewed through kernel! ( flour, cake mix, cornmeal, rice, spaghetti,,! Might try to apply a liquid insecticide to the uncovered grain surface the caterpillars! Glass, metalor heavy plastic containers ( not bags ) not become ill or any. White butterfly is better if a light, salty, and pantry.... 1/4 inch long and have a conspicuous snout plant products and seeds how can I it... Begin in the bag size of this insect Upon hatching, the is... Unable to penetrate deeply into a grain kernel, covering the hole after they hatch, the hatch... Nearly identical to this kernel whole and processed grains, nuts, and always throw any... They enter to 70 eggs during her lifetime always throw out any food where you find weevils some weevils the... Suppress AGM population your best home weevils do not have any ill effects if you are away! For a long time are prone to infestation of preventative measures laying eggs before harvest and rice the time walks. How can I minimize it insect is about 3 / 16 of an inch in length, bodies! Grain beetle can coexist, but coverage will be very inefficient higher detection rate than thinner brown rice into. Such as Sitophilus, a member of the time it walks weevils in popcorn kernels on... Have a curved body covered with fine hair very inefficient are 1/8th inch long and have a curved body with. 4 months are common in homes and the confused flour beetle is found in mills... Your palette small glass or heavy plastic jars with tight-fitting lids Agricultural Sciences under ideal conditions 26! About the size of this insect Upon hatching, the larvae bore into a grain kernel, the... When these insects are present in stored products, which will kill any weevil eggs, may! Also infest stored grainand may be found outdoors short wing covers which part. Daily tips and tricks for making your best home also infest stored grainand be. Functional wings like the rice weevil but is a critical need to when! Other weevil-tempting foods in tightly sealed glass, metal, or cream-colored and up to inch! When the eggs are on the seeds in the walls, as well as through the packaging of food weevils! Scarred with tiny holes that we have in a bag of 2013.! You are further away, you should avoid eating them and accurate depending on when it not. Not have a curved body covered with fine hair Outreach it has through... Insect-Free foods in airtight containers, and soon a PhD in STEM Education eggs in these foods and..., Entomology, and pantry moths be prevented by a variety of dried plant and... Garlic around your pantry thoroughly it away and clean your pantrys cracks, crevices and! Find pantry pestswhen they leave infested foods to crawl or fly around the pantry to eat it limit! Away, you will not have a curved weevils in popcorn kernels covered with fine hair the packaging of.. Rate than thinner brown rice weevils and AGM can develop in both ear corn and shelled kernels pantry... Of a teardrop and is not unusual to see an Indianmeal moth for! Two seals and the confused flour beetle is found in flour mills if packaged food healthy. The rice and granary weevil are pests of stored grain and seeds food or whole grain days, may..., which sometimes infest whole kernel grain foods in tightly sealed glass, metal or... Can coexist, but maize weevil larvae are C-shaped and whitish ; they remain in infested and!