Small green leafhopper Also known as peach leafhopper, small green leafhopper, etc., a little leafhopper, peach floating dust, belongs to the same winged order, leafhopper family. Occurs 4-6 generations a year, with adults overwintering in evergreen trees near deciduous leaves, weeds or peach orchards, and when the peach sprouts in March and April of the following year, it migrates to the young leaves of the peach tree to sting and suck, and the yellow-white dots on the affected leaves are initially appeared, and when the spots are severe, the spots are connected, making the whole leaf pale and falling leaves early. The first generation is in early April, until the 6th generation in September, and in October it is looking for green grass, overwintering crops, and evergreen tree filaments. Peach leafhoppers occur in 4 to 6 generations a year.
< h1 class="pgc-h-arrow-right" > life habits</h1>
Adults of the peach leafhopper generally lay eggs in the new shoots or leaf dorsal main veins of the tree, and are mostly near the base. The egg stage is generally around 5 to 20 days. After hatching, nymphs often cluster on the back of the leaves to feed or inhabit. Frightened, the small leafhopper nymph usually crawls quickly, while the adult insect bounces and can spread with the help of wind. The first adult generation of peach leafhoppers usually occurs in the early stages of April. The occurrence period of peach leafhoppers will be uneven, so there will be generational overlap. Usually in April, the number of insect mouths of the peach leafhopper will increase significantly, while the number of insect mouths will be the largest between July and September, and the most harmful. If the temperature is high after autumn, the harm of peach leafhoppers will be aggravated and will be delayed.
< h1 class="pgc-h-arrow-right" > morphological characteristics</h1>
Adults are 3–4 mm long, yellow-green to green, with a white stripe in the center of the head, an inconspicuous black spot on each side, white streaks on the inside of the compound eyes and behind the head, and are connected to the previous white stripe in a "mountain" shape. The forewings are green translucent and the hindwings are colorless and transparent. Female adults have green ventral grass, male adults have a green ventral grass, and male adults have a yellowish green ventral surface. The eggs are about 0.5 mm long, banana-shaped, with a slightly larger tip, pale yellowish-green, and a pair of red eye spots appear later. Nymphs, except for their wings, are similar in shape and color to adults.
<h1 class="pgc-h-arrow-right" > hazard characteristics</h1>
The peach leafhopper feeds on the back of the leaf by sucking the sap of the tree. The leaves that are affected by the peach leafhopper will initially appear some yellow-white dots, and when the damage is more severe, the spots will be connected, and the entire leaf will become pale when the victim is most severe. Peach leafhoppers often cause premature and abnormal shedding of tree leaves, which not only affects the differentiation of tree buds, but also affects the growth of tree bodies, and can also induce the occurrence of diseases such as gum disease.
< h1 class= "pgc-h-arrow-right" > control method</h1>
1. After entering the winter, the adult insects scrape the warp skin in time before they emerge from the sting, and thoroughly remove the fallen leaves and the surrounding weeds, and concentrate on burning or deep burial to eliminate the pests that overwinter and reduce the source of overwintering insects.
2. After the peach tree is cut in winter, the work of brushing white coating agent should be carried out in time to protect the tree body.
3. Use frequency vibration insecticidal lamp to trap adult insects. Taking advantage of the phototropism of adult insects, lights can be used at night to trap adult insects of peach leafhoppers.
4. Pharmaceutical prevention and treatment:
The medicinal control of peach leafhoppers should be mastered after the overwintering generation of adult insects move in, and the incubation of each generation of nymphs. The following three key periods of spray control: the leaf spreading period of the new shoots after the flowering, the first generation of nymph incubation in May, and the second generation of nymph incubation from late July to early August can be sprayed with imidacloprid, high-efficiency cypermethrin, enemy killing, thiamethiazide and other agents. The same agent should not be used more than 2 times continuously, sprayed once at intervals of 7 to 10 days, and sprayed 2 to 3 times continuously, and good control effects can be achieved.
【Disclaimer】 Some articles and information come from the Internet, if the reprinted content involves copyright and other issues, please take the initiative to contact the platform and provide relevant written evidence, the platform will correct the source and author or delete the article according to the opinions of the copyright owner, without any other responsibility. The original content of this subscription account, reproduced shall be authorized, and the author and source shall be indicated.
Pear stem bees are coming, so prevented!
The prevention and control of pear lice is worth collecting!
Learn from the orchard steward, there are no more peach tree aphids!
Orchard control of heartworms (peach borers) begins in April
Orchard steward of Nongda: The leading fruit tree technical service team in China, the disseminator of advanced cultivation management technology in agricultural universities, and the provider of systematic management technology for orchards. Welcome to pay attention to the orchard housekeeper headline number, we have the most professional orchard technical service team, to provide you with orchard technical hosting, high-quality seedling promotion, agricultural materials distribution, fruit collection and sales and other business to help you solve any problems in the orchard.