Why is cotton resistant to locusts?

The transgenic insect-resistant cotton planted in China today is mainly resistant to the pests of the order Pestoptera. The insect resistance of these cottons benefits from the introduction of exogenous BT or BT+CPTI insect-resistant genes, which in addition to their resistance to Helicoverpa armigera also have a better resistance to the pink bollworm, but are less resistant or fundamentally resistant to other pests. No resistance. Therefore, the transgenic insect-resistant cotton itself does not have the ability to resist aphids. Although the insect-resistant cotton itself is not resistant to aphids, it can be made to have the ability to resist seedling aphids and thrips through treatment with appropriate seed coating agents. Now commonly used anti-aphid effect of a good seed coating agent is Germany Bayer's Gao Qiao and so on. The seeds coated with this kind of coating agent generally ensure that the aphids are not controlled 50 days after sowing, and the longest anti-aphid effect is sustainable up to 70 days after sowing. In this way, after the wheat harvest, the locusts could not develop due to the fact that the wheat field locusts had all been transferred to the cotton fields after the wheat harvest. Therefore, the use of high-coated cotton generally can not survive the seedling locust. However, this is not absolute. If locusts are particularly heavy, they still need to be eliminated 1 or 2 times. Since the insecticide effect of Gao Qiao seed coating agent can only last for 70 days, it does not possess the anti-depression ability. Therefore, it should be removed in time for the occurrence of the disease. So is it not the same as the effect of the high-coating seed against seedlings in the seedling stage? No. Anti-mite effect also has a great relationship with coating quality. Tests have proved that the anti-worm effect of cottonseed with high-quality coating is not ideal. It is worth mentioning that the resistance to aphids is not related to the color of the seed coating agent. Gao Qiao seed coating agent is originally white, generally in order to remind people that coated seeds are toxic, people in the coating often add a warning color to the seed coating agent, such as red, purple and so on.

Our PP Resin pellet has a variety of uses in the pharmaceutical packaging industry. The original materials that come to our factory will go through a series of strict tests to ensure the quality. Then we will mix the corresponding raw materials with an appropriate proportion. When everything is ok, we will go to the production procedure.  During the whole production process, we have specific  quality management system to guarantee the quality.

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