Mulberry leafhopper
The name Hishimonus sellatus (Uhler.) is Homoptera, Leafhopper. Alias ​​green head diamond leafhopper. It is mainly distributed in planting mulberry districts in East China, Central China, South China and Southwest China. Host mulberry, soybean, sesame, hemp, mung bean, eggplant, potato, etc. Injury features nymphs, nymphs sucking leaves of young mulberry juice, but also spread mulberry atrophy.
Morphological characteristics Adult body length 3.9-4.6mm, body yellow-green, light yellow-brown markings. Prominent in front of the head, with yellow luster, several pairs of indistinct pale yellow-brown small stripes on the top of the head, a brown middle vertical line on the back of the head, no visible markings on the face, or 7-8 dark lines in the frontal area. The compound eye is dark green, yellow in one eye, yellow-green luster in the front of the chest, scattered small spots of blue-gray, small yellow shield plate, two pairs of light brown spots and a middle line, and a fine black transverse groove in the center. The forewings are grayish white, translucent, light brown in color, scattered with light brown spots and short lines, and have a large triangular or semi-circular light spot in the middle of the trailing edge. When the two wings were closed, they showed a diamond-shaped spot, and the markings were dense at the periphery. The dark brown end of the wing has four gray dots in it. The body's ventral surface is yellow or light yellow-green, its legs are light yellow, and its abdomen is dark brown on the center of the abdomen, and a few individuals have a light yellow-brown reticular pattern on the ventral surface. Egg length 1.5mm, width 0.6mm, curved half-moon, one end, the other end obtuse. The nymphs were 5 instars in length, 3.9-4.3 mm in length, crown-greenish yellow, sparse brown spots, and a yellowish longitudinal line. The compound eye is dark green, yellow in one eye, sparsely small brown spots on the face, thick brown on the back of the chest, yellow dots, yellow-brown buds in the wings, reaching to the second abdominal segment, and a pale yellow belly. (right)
Life habits 4 generations in Jiangsu, Zhejiang, and Anhui, wintering eggs. In late April of the following year, the hatching time of the second to fourth generations is respectively from the middle of June to the beginning of July, the end of August and the beginning of September and the end of October. The first generation of nymphs was densely lodged on mulberry trees and was bred in late May. In the event of summer harvesting of mulberry trees, they often migrated to soybeans, mung beans and other crops and completed the second and third generations. The nymph likes to feed on young plants. When these plants age, they move to third and fourth hosts such as sesame. At the end of the fall, the overwintering adults migrated back to the mulberry to spawn. The eggs were laid between the mulberry branches and the cork and arranged in rows. Eggs are oval in shape and slightly pointed at one end. Non-overwintering eggs are produced on shoots, petioles, veins or sesame stalks, and soybean meal. The main natural enemies include the bees, black beetles, and spiders.
See the control method for Rhizoctonia.
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