The genus Aphid is a common branch of the genus Homoptera, also known as a worm. Because it secretes honeydew, it is also called honeybee.
Hazard characteristics
The locust sucks the sap of the white clover leaves and stalks, often causing the white clover leaves to fade, collapsing into clumps, affecting the development of the white clover, causing severe stagnation of the white clover, eventually yellowing, and even death. Moreover, locusts are an important vector for white virus disease and other diseases.
Occurrence
Aphids occur several generations a year, alternating between generations, breed for generations 4 to 5 days in summer, and each female can breed 60 to 70 heads of Rugao each year. Overwintering with eggs, hatching in spring from March to April of the following year. Parthenogenetic females are born on the overwintering plants. They breed for 3 to 4 generations. They produce winged females from April to May. They fly to summer hosts and harm and continue parthenogenetic reproduction. In late autumn, the winged migratory locusts migrated from the summer host to the overwintering plants, resulting in sexually wingless females and flying males. They laid eggs after mating, and wintered with eggs.
Control methods
Chemical control can be sprayed with 50% phoxim EC 800 to 1000 times, or 2.5% to kill 2500 to 3000 times liquid and other foliar spray, pay attention to safety when spraying. Omethoate is also a good medicine for controlling aphids. However, omethoate may cause harm to peaches, prunus triloba, and Begonia. It should be carefully used when using on garden plants.
Non-polluted control sprayed with 800 to 1000 times of 1.2% bitter-smoke EC, or 3,000 to 4000 times of 6% imidacloprid, or 5,000 to 6000 times of 5% acetamiprid EC.
Yellow thin plastic plates seduce winged crickets.
Pay attention to the protection and use of various natural enemies. Do not use broad-spectrum pesticides during the incubation period of natural enemies.
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