Into April, this wave of pests immediately into the "critical control period"!

Today, every day we will take a look at agricultural materials, we in the end when prevention and control to play a good prevention effect.(mainly targeting the major pests in early spring)

In general, the best prevention period, the key is to seize a "young" word.

Generally speaking, the effect of the medicine is the best in the early larval stage, the older the insect is, the worse the control effect is.

Another, there is a good prevention period is the early spring insects peak, at this time the drug can often reduce the late base of the worm, has a very good effect.