The scientific name Pandemis ribeana Hubner is Lepidoptera, leaf curler. Alias ​​gooseberry moth, currant curly leaf roller moth. Distribution in the Northeast, North China, East China, Central China and most of the Southwest Province.
The host mulberry, gooseberry, apple, pear, peach, wolfberry, red bayberry, birch, alfalfa, buckthorn, pearl and so on.
When the larvae damage the mulberry traits, they shoot silk and leaves in the tender heart of the new shoots. They hide and eat the buds and leaves of the growing buds, forming rotten heads. The growing points are bitten to cause axillary buds, affecting the production of leaves and tree vigor.
Morphological characteristics Adult body length 7-10mm, wingspan 18-23mm, body yellowish-brown, brownish forequarters, covered with fine brown fine reticular pattern, base spot, middle band and end line are all wide, brown, end-marked oblique Stretched to the hip, named three leaf roller moth. The middle of the front wing of the forewing is more prominent, especially male; the hind wings are light yellow to brown. The lower lip must extend forward and the antennae are filiform. The second section has depressions, and the compound eye is spherical and black. The egg is 0.8mm long, flat oval, pale green after light yellow. Larvae body length 14-18mm, slightly flat, head yellowish green and brown; unilateral area black, green back to dark green body, body side and ventral light yellow-green, distinct body hairy tumors, body color, upper yellow and white The bristles, the back of the abdomen, are arranged in four trapezoids.
The newly hatched larvae have a body length of 1.5 mm, a black head and a pale yellowish white body. The dragonfly is 9-12mm long, yellowish-brown in greenish green, cylindrical, with 8 hooks on the hip spines.
Living habits Jiangsu sangqu six generations, the generation of larvae in each generation in mid-May, mid-June, mid-July, mid-August, mid-September and mid-October, with the last generation of 3-4 larvae in the tree Leather seam, dead leaves in winter. In mid-April of the following year, overwintering larvae begin to phlegm and spawn after spawning in late April. In Shanxi, it has been born for 2 generations. The larvae of young inhabitants grow thin at the tree joints and overwintering, and the host plants sprout in the following year. Adults lived up to nocturnal, spawning had tender green habits, eggs spawned on the surface of new leaves, egg mass production, covered with yellow waxy material. Each female lays an average of 2.8 eggs. Each egg has 10-30 eggs, more than 67 eggs, and the egg period is 7-8 days. The newly hatched larvae crawled rapidly and climbed until the leaf margin drooped and spread. The middle and old larvae are also very lively. When they are touched or disturbed, they quickly twist their bodies to droop and escape. Adults, eggs and more rainy days, air humidity occurs. The natural enemies mainly include Trichogramma, Aphids, and Beauveria.
Prevention methods (1) In the peak period of adult egg laying, artificially picking eggs or manually pinching the leaves before and after noon on sunny days. (2) Spray 20% chrysanthemum-killing oil 1000 times solution or 40% chrysanthemum emulsifiable concentrate 1000-times solution, 80% dichlorvos emulsifiable concentrate 1200-fold solution, and 25% ikaka emulsifiable concentrate 1500 in combination with other pests in the control of mulberry field. Times of liquid, 48% chlorpyrifos EC 1300 times.
BGO PET CT,Large Extended Axial Fov,Sipm Technology Material,Positron Emission Tomography
MinFound Medical Systems Co., Ltd , https://www.minfoundmed.com