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flour weevils
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what are they and where do they come from
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These beetles are frequent invaders in the home and are also one of the worst pests of flour mills. The beetles are about 1/8 inch long and reddish-brown in color. Females may live a year or more, dropping up to 500 eggs on infested foods. Small, white worms (larvae) hatch from these eggs and they feed until they're about 1/6 inch long. Under ideal conditions, development from egg to adult takes about two months. The beetles infest flour, breakfast food, baking powder, beans, peas, dry pet food and other starchy materials. The adults can migrate throughout the kitchen and infest any other attractive foods in open containers left undisturbed for long periods.
Methods of Control
Sanitation is the best method of control and prevention at present. Removal of all cereal refuse does away with possible breeding places for the insects. Therefore, controlling insect pests in stored cereal products should include the following steps: Discard all infested foodstuffs and place all newly purchased flour, sugar, breakfast food and similar products in canister-type containers. Thoroughly clean the cupboard and storage bins of all refuse material. Be sure to clean out the cracks along the shelves and top of the cupboard. Scrub out these areas with soap and water, adding a little household disinfectant. Keep all food storage space clean.
Spray the shelves or other infested areas lightly, particularly cracks where shelves and cupboards come together. Suggested insecticides include resmethrin, sumithrin, tetramethrin, permethrin and pyrethins.
Caution: All foodstuffs and cooking utensils should be removed before spraying. All sprayed surfaces should be allowed to dry thoroughly before packaged foods or utensils are placed back. Nonchemical control: Either destroy the infested products, or salvage them by heating in an oven at 130 degrees Fahrenheit for one-half hour, or super-cooling by placing in a
These beetles are frequent invaders in the home and are also one of the worst pests of flour mills. The beetles are about 1/8 inch long and reddish-brown in color. Females may live a year or more, dropping up to 500 eggs on infested foods. Small, white worms (larvae) hatch from these eggs and they feed until they're about 1/6 inch long. Under ideal conditions, development from egg to adult takes about two months. The beetles infest flour, breakfast food, baking powder, beans, peas, dry pet food and other starchy materials. The adults can migrate throughout the kitchen and infest any other attractive foods in open containers left undisturbed for long periods.
Methods of Control
Sanitation is the best method of control and prevention at present. Removal of all cereal refuse does away with possible breeding places for the insects. Therefore, controlling insect pests in stored cereal products should include the following steps: Discard all infested foodstuffs and place all newly purchased flour, sugar, breakfast food and similar products in canister-type containers. Thoroughly clean the cupboard and storage bins of all refuse material. Be sure to clean out the cracks along the shelves and top of the cupboard. Scrub out these areas with soap and water, adding a little household disinfectant. Keep all food storage space clean.
Spray the shelves or other infested areas lightly, particularly cracks where shelves and cupboards come together. Suggested insecticides include resmethrin, sumithrin, tetramethrin, permethrin and pyrethins.
Caution: All foodstuffs and cooking utensils should be removed before spraying. All sprayed surfaces should be allowed to dry thoroughly before packaged foods or utensils are placed back. Nonchemical control: Either destroy the infested products, or salvage them by heating in an oven at 130 degrees Fahrenheit for one-half hour, or super-cooling by placing in a
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