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The beetle is a shiny, reddish- brown, about 3.5 mm long, flattened and oval (Fig.). The wing covers are ridged lengthwise and sparsely punctured between.

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Presentation on theme: "The beetle is a shiny, reddish- brown, about 3.5 mm long, flattened and oval (Fig.). The wing covers are ridged lengthwise and sparsely punctured between."— Presentation transcript:

1 The beetle is a shiny, reddish- brown, about 3.5 mm long, flattened and oval (Fig.). The wing covers are ridged lengthwise and sparsely punctured between the ridges. The average life of the beetles is about 1 year, but some have been known to live as long as 45 months. Adult Beetle Virtual Academy for the Semi Arid Tropics Lesson 2: Confused Flour Beetle Module V: Storage Pests Course on Insect Pests of Sorghum

2 Virtual Academy for the Semi Arid Tropics Lesson 2: Confused Flour Beetle Course on Insect Pests of Sorghum Module V: Storage Pests The females lay an average of about 450 eggs each. The small white eggs are laid loosely in flour or other food material in which the adults are living. They are covered with a sticky secretion and thus become covered with flour or meal, and readily adhere to the sides of sacks, boxes, and other containers, so that fresh material placed in them is rapidly infested.

3 Virtual Academy for the Semi Arid Tropics Lesson 2: Confused Flour Beetle Course on Insect Pests of Sorghum Module V: Storage Pests The eggs hatch after 5-12 days into small worm-like grubs, slender, cylindrical, and wiry in appearance. When fully grown, they are about 4.5 mm long, and are white, tinged with yellow (Fig.). They then transform to small naked pupae. Grub of Confused Flour Beetle

4 Virtual Academy for the Semi Arid Tropics Lesson 2: Confused Flour Beetle Course on Insect Pests of Sorghum Module V: Storage Pests Damage The larvae feed on flour or other material such as grain dust and the broken surfaces of grain kernels. Management Storing products in sealed containers provides effective control. Fumigants are also effective.

5 Virtual Academy for the Semi Arid Tropics Lesson 2: Confused Flour Beetle Course on Insect Pests of Sorghum Module V: Storage Pests The Lesson 2 on Confused Flour Beetle that infest stored sorghum grains concludes. The Lesson 3 is about Red Flour Beetle that affects sorghum grain in storage. Select Lesson 3 from Module V contents Virtual Academy for the Semi Arid Tropics Module V: Storage Pests Course on Insect Pests of Sorghum


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