Green blind bugs, also known as small bed bugs, for the hemiptera blind bugs, distributed throughout the country, the Yangtze River Basin and the Huang-Huai-Hai region occurs seriously, has become grapes, pear trees, jujube trees, apples, cotton, sugar beets, tea, tobacco, broad beans, alfalfa, various grasses and other crops on the main pests, the host is extensive, the harm is serious, the current insect has entered the peak of harm, we must pay attention to the investigation and treatment.
Hazard characteristics
Green blind bugs mainly suck the sap of young organs of plants with nymphs and adults, mainly endangering young organs such as tender tips, young leaves, flowers, young fruits, etc. After the young leaves are killed, small black spots appear on the leaves first, as the leaves grow, the dead spots expand, and the leaves appear irregular holes, so that the leaves are incomplete, wrinkled and deformed; after the growth point is killed, the growth point stops growing, and when it is severe, it dies; the buds are affected, easy to dry and fall off; the young fruit is damaged, and the brown dots appear on the fruit surface first, and the growth of the young fruit forms a bumpy black brown spot. Causes young fruits to crack or fall off, which seriously affects the growth of young fruits and the quality of fruits.
Regularity of occurrence
Green blind bugs occur in 3 to 5 generations a year in the Huanghuai region, mainly overwintering with eggs in peach trees, pomegranates, and cotton dead branches. In early April of the following year, the eggs will begin to hatch, and the hatched larvae can harm the young parts of the plant, the nymphs are very active, the adults have strong flight ability, mainly in the early morning or evening, and prefer warm and humid climatic conditions. In particular, the first generation in late spring and early summer is seriously harmful.
Prevention and control methods
(1) Green blind bug adult flight ability is very strong, so do a good job of field inspection, should seize the nymph period for control, you can choose the following agents for control: 20% furofuran amine soluble powder 2000 times liquid, or 22% flufenonitrile suspension agent 4000 ~ 6000 times liquid and other agent sprays, after 4 pm for control, depending on the degree of occurrence of pests, can be sprayed again after 7 days, basically can quickly control the harm and spread.