Answer: The main control object for baby food is Plutella xylostella. The most important thing for the prevention and control of this insect is to prevent it early--the insects are eliminated before the 3rd instar (when the insects are concentrated in the heart of the crop to bite the heart, the heart grows and the hole grows into a hole, often at this time The vegetable farmers only saw the hazard before they started to control it. People don't know much about it, and prevention is often very lagging. This is the key to farmers' ability to grow pesticides more than once. The crops grow normally, no need to use a regulating agent to prevent bolting, and an auxin regulating agent can be suitably applied.
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