Great Plains Chemicals


Cadelle Cadelle Tenebroides mauritanicus It is an oblong, elongate, flattened, black or blackish beetle about 1/3 inch long. The larva is one of the largest of the grain infesting insects and is easily recognized. It is about 3/4 inch long, fleshy with the abdomen ending into two dark horny points. The larva body is dirty or chalky white, and the head, thoracic shield, and two pointy horns are black. The female deposits 500-1,000 eggs in clusters in the grain or grain products over the course of several months. The entire development period is about 1 year in temperate zones. Many of the adults live for more than 1 year, some of them for nearly 2 years.	Confused Flour Beetle Confused Flour Beetle Tribolium confusum J. du V. Feeder: External 3 - 4 mm, 1/8 inch long. Small reddish-brown. Flattened appearance. Externally developed. Feeds on grain dust or broken kernels. IT DOES NOT FLY. Does not attack undamaged kernels. The segments of the antennae increase in size toward the outer end. Life cycle: Optimum: 20 days egg to adult at 95F (35C), 75% humidity Range: 72-104F (22-40C) Maximum population growth rate per month: 70 times Biology Eggs: Laid at random Larvae: Mobile, not concealed Adult: Long lived, feeds, infestations often leaving an unacceptable taint,	Flat Grain Beetle Flat Grain Beetle Cryptolestes pusillus (S) Feeder: External 1/16 of an inch long. Minute, flattened oblong - reddish to brown in color. The antennae are about 2/3 of length of body. Scavenger attack. Moldy or out of condition grain. Flies. Life cycle: Optimum: 23 days egg to adult at 91F (35C), 70% humidity Range: 64-109F (18-42.5C) Maximum population growth rate per month: 55 times Biology: Eggs: Laid at random Larvae: Mobile, not concealed Adult: Long lived, feeds, flies, walks rapidly, able to enter packaged foods through very small cracks.	Granary Weevil Granary Weevil Sitophilus granarious (L) Feeder: Internal 1/10 - 3/16 inch long. Develops inside kernels, has snout or proboscis. Adult color black to brown. DOES NOT FLY. No wings under elytia, oval pits on thorax. Life Cycle: Optimum:f 25 days at 86F (30C) Range: 57-95F, (14-35C), minimum r.h. 40% Maximum population growth rate per month: 25 times Biology: Eggs: Laid singly in prepared hole in grain and covered with waxy plug Larvae: Immobile, develop concealed within a single grain Adult: Long lived, feeds, infestations can cause considerable grain heating.

Indian Meal Moth Indian Meal Moth Plodia interpunetella Wings are grayish-white on the inner half and the outer half is a darker reddish-brown. Wing span 3/4 inch. Larvae is 1/2 inch long. White to greenish brown head. Four pair of prolegs on abdomen. Feed on coarsely ground flour, but also attack whole grains, dry fruits, and processed foods. It is a surface-infesting pest (8 inch deep). Webbing left by larvae is characteristic of this insect. It does Fly. Life Cylcle: Optimum: 30 days at 86F (30C), 75% r.h. Range: 64-95F (18-35C) Maximum population growth rate per month: 60 times Biology: Eggs: Laid at random Larvae: Mobile, produce large quantities of silk Adult: Short lived, does not feed, flies, active at dusk and dawn	Lesser Grain Borer Lesser Grain Borer Rhyzopertha dominica (F) Feeder: Internal 2-3 mm, 1/8 inch long Develops inside grain kernels. Needs temperature of above 73 degrees F. IT DOES FLY. Infested grain has a urine like odor, thorax protects head. Last three segments of antennae form a loose club. Life Cycle: Optimum:f 26 days at 86F (30C) Range: 64-97F (18-36C) , 40-90%r.h. Maximum population growth rate per month: 25 times Biology: Eggs: Laid as females burrow through grains Larvae: Immobile, lives within grains or in the flour produced by adults Adult: Long lived, feeds, strong flier. They are adept burrowers and produce large quantities of flour.	Maize Weevil Maize Weevil Sitophilus zeamaise (M) Feeder: Internal Slightly larger than rice weevil, thorax of maize weevil dense and uniform round pits. Feeds inside kernels. IT DOES FLY. Life Cycle of 25 days @ 30 degrees Celsius Maximum population growth rate per month: 25 times	Mediterranean Flour Moth Mediterranean Flour Moth Anagasta kuehniella Feeder: External It is 1/4 to 1/2 inch long with a wingspread of slightly less than 1 inch. Its hindwings are dirty white and the forewings are pale leaden gray with transverse wavy, black markings. The female lays an average of about 200 eggs. The fully grown larva is about 1/2 inch long and is whitish or pinkish, with a few small black spots on the body. It requires 8 to 9 weeks to pass through the egg, larva, and pupal stages. It does fly.

Red Flour Beetle Red Flour Beetle Tribolium Castaneum (H) Feeder: External Similar in appearance to Confused Flour Beetle, but the last three segments of antennae are larger than the rest of the segments of antennae. RSB is known as a strong flyer. Life cycle: Optimum: 20 days egg to adult at 95F (35C), 75% humidity Range: 72-104F (22-40C) Maximum population growth rate per month: 70 times Biology Eggs: Laid at random Larvae: Mobile, not concealed Adult: Long lived, feeds, infestations often leaving an unacceptable taint,	Rice Weevil Rice Weevil Sitophilus orizae (L) Feeder: Internal 1/8 inch long Develops inside kernels, color and appearance similar to granary weevil, four red or yellowish spots on wing covers. Fully developed wings. IT DOES FLY. Life Cycle: Optimum:f 25 days at 86F (30C) Range: 57-95F, (14-35C), minimum r.h. 40% Maximum population growth rate per month: 25 times Biology: Eggs: Laid singly in prepared hole in grain and covered with waxy plug Larvae: Immobile, develop concealed within a single grain Adult: Long lived, feeds, infestations can cause considerable grain heating.	Saw-Toothed Grain Beetle Saw-Toothed Grain Beetle Oryzaephilus surinamensis Feeder: External Has six saw-teeth on either side of throax or neck. Dark brown - 1/10 inch long. Scavenger insect. Smaller eyes than merchant G.B. and triangular head. Does fly. Life cycle: Optimum: 20 days egg to adult at 91F (33C), 80% humidity Range: 64-100F (18-38C) Maximum population growth rate per month: 50 times Biology: Eggs: Laid at random Larvae: Mobile, not concealed Adult: Long lived, feeds, flies, will rapidly walk long distances. Can easily enter packaged food.	Warehouse Beetle Warehouse Beetle Trogoderma variable Feeder: External Most common of several species. Larvae is approximately 1/4 inch 6-8 mm. Color varies from yellowish-white to brown and dark brown. Larva has two types of hair-one type is slender with many short pointed hairs. There are about 4,000 hairs on a larva, larval skins considered a dangerous contaminant. The adult is brownish-black. About 1/8 inch long. Color pattern as illustrated. The adult is considered a good flyer. Feeds on almost any dried plant or animal material. Life Cycle: Optimum: 27 days at 90F. (32C), 70% r.h. Range: 64-104F. (18-40C), survives very dry conditions. Maximum population growth rate per month: 8 times Biology: Eggs: Laid at random Larvae: Mobile, often concealed in cracks and crevices. Cast skins left thoughout the infested food. Can survive unfavorable conditions for several years. Adult: Short lived, does not feed, flies well