Many people will encounter this problem, that is, the green onion leaves are yellow and spotted and some white, open the green onion leaves and you will find that there are several small white worms inside the leaves, and these small white worms are green onion thrips!
The reason why the green onions are yellow and white is because of the nibbling of these small white insects, which causes the green onions to look sick and not sick! When we clean up these bugs, we use general medications, which are not ideal after spraying!
Because the green onion leaves are thick, and the general drug is basically ineffective against the insects in the onion leaves! Not only the thickness, but also some drugs cannot penetrate from the leaf surface to the inside of the leaf, because the onion leaves do not absorb the drug!
Prepare soil
A long time ago, I used Oxylego to kill insects, but the effect was not good, the green onions could not absorb the drug, resulting in the infestation of small white insects, the green onions were eaten yellow, not to mention, but also emitted a bad taste!
How can these pests be eradicated?
To eliminate these pests, it is necessary to buy stem and leaf suction drugs at local agricultural material stores, which can only be used after detailed instructions from local distributors.
Because this drug is systemic, when the leaf surface and stem and leaf of the onion are sprayed into the drug, the drug penetrates the inside of the green onion, causing the green onion to produce toxins, thus achieving the effect of insecticide, and these pesticides are safely spaced for 25 days, and each drug can only be sprayed at most once a season!
Sick rotten onions
In fact, there are many drugs that can eliminate the small white insects in the onion, such as "aphidone, worm dile, chlorpyrifos, strong roll" and other drugs, these drugs are also listed to mark the restriction of use, because excessive use will lead to crop absorption of excess drugs, resulting in the occurrence of burning seedlings, red leaves, leaves, seedlings do not grow, dead seedlings and other states!
On the third day of the insect eradication, we also need to spray foliar fertilizer, the effect of spraying foliar fertilizer is to defend against diseases and insect pests, cold and drought resistance and decomposition of pesticides, promote the growth of green onions, and make the green onions grow more vigorously.
That is, sprayed foliar fertilizer, not afraid of frost, not afraid of drought, sterilization, effective prevention of diseases and insect pests, resulting in green onions more robust, more leaf luxuriant!
What a big green onion
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