Cotton cotton double skewer

The scientific name Clepsis (Sic10bola) strigana (Hubner) is a Lepidoptera, Tortricidae. Distribution northeast, north, southwest.

Hosts cotton, strawberries, soybeans, Chiang Kai-shek, kenaf, hemp, silk flowers.
The characteristics of larvae damage the larvae and roll the top leaves into cylindrical form, hidden in the tube. Cut off flower buds, fruit stems and leaves.

Morphological characteristics Adult body length 7mm, 15-21mm wingspan, lower lip extension, distal drooping. The front wings are light yellow to golden yellow with a metallic sheen. The mandible has a leading pleat with 2 red-brown squints on the wing surface, one is not obvious, leading from the leading edge l/4 to 1/2 of the trailing edge; the other is obvious, leading from 1/2 of the leading edge Hip angle, vertex angle to the outer edge. Male moths are light brown in hind wings and yellowish white in females. Egg hemispherical, diameter 0.6nun. The larvae have a body length of 15–19 mm, a light green color, a brownish-brown head, and a light green topline. Each pod has two very small dots. Approximately 8mm in length, spindle-shaped, yellow-brown.

Living habits 4 generations in Jiangsu, may larvae and cockroaches winter. Adults emerged in late March of the following year. In mid-April, the larvae prospered. From mid-May to mid-June, the second-generation larvae prospered, overlapping each generation later. The larvae in the Mosquito River of Jilin were infested from early June to early July. In mid-June, the larvae reached the end of their infancy. The larvae entered the final age in the middle and late June. The larvae began to metamorphose. The adults emerged from the end of June to early August, and the larvae were transformed. Damage characteristics. The damage is heavy in the coastal areas. Natural enemies have bees. Prevention methods (1) Combine field management to kill larvae in leaf rolls. (2) Protect and use natural enemies. (3) Early spraying of 50% Acacia pine wettable powder l000-1500 times or 25% ikaka 1500 times, 16% SF 30% 1500 times, and 50% cymoxane 1000 times liquid.