The four asked four A saying cotton stinkbug

The four asked four A saying cotton stinkbug
In recent years

cotton stinkbug the occurrence of becoming serious, high and stable yield of cotton caused a great deal of threat. Therefore,jayson home and garden, to understand its characteristics timely symptomatic control.

Q: cotton stinkbug damage symptoms of what kind?

A: The cotton plant bug as adults, nymphs sucking the cotton plant sap damage, also different manifestations in different growth period of cotton

: cotyledon stage, the growing point killed transformation black and dry, no longer grow; leaf emergence the terminal bud victims dead, adventitious buds profusion become a Damage leaves murdered points early were black specks, after a large number of broken leaf unfolding, called Top heart and apothem victim formed overgrown foliage The young bud victims often bract open, first was brown, then dry off. The young bolls murder light wounds appear water-soaked spots, the heavy cotton bolls rigid shedding.

Problems: Cotton stinkbug total of several?

A: Damage cotton cotton stinkbug lucorum like the three points mirids alfalfa blind stinkbug black blind stinkbug Dolycoris Pentatomidae (fuzz Stephanitis), collectively referred to as cotton stinkbug . Rainfall in June and August, more conducive to its occurrence.

Three Questions: Cotton stinkbug occurred in the cotton fields of several generations? When prevention is better?

A: Cotton stinkbug in cotton fields generally occurs four generation adult emergence peak in mid-May, late June, mid and late July, mid-August. However, because of its variety and mixed occurrence of long duration, serious overlapping generations,all electronics, so the precise control period is not easy to grasp. In reality, a lot of farmers in cotton serious damage symptoms only when a large number of medication is not right, so that one cotton have been victimized, the waste of medication expenses. The key to prevention

Four questions: how to cure cotton stinkbug?

A: cotton the stinkbug adult fly capability, agile and active, phototaxis, and brought a certain degree of difficulty to the prevention and control work. So spraying in the evening is better, pay attention to the The less liquid, the spraying of the multi-frequency Experiments show that 800 times, the choice of 20% (or 20% methomyl Granville) 800 times 1000 times +2.5% trifluoroacetic cypermethrin (or 35% Saidan) +44% C Sim EC (or 40.7% Chlorpyrifos this) haoniandong The 3 different pesticide ingredients mixed spraying, not only good addition to governance cotton stinkbug, at the same time to rid of the cotton bollworm, aphids, spider mites, leafhoppers, B. tabaci and other pests, a spray governance significant effect .