Pulling parks left the garden unwise
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When the author saw Liu Chenglong at Laozhuang Village, South Building, Shangkou Township, Shouguang City, Master Liu was solving the nylon rope and put the dried stalk on the ground. The author saw that the sheds of the loofahs had dried up, and there were many things resembling spider webs at the connection of these nylon ropes to the iron wires. After careful inspection, it was confirmed that this was the web of red spider knots. After the exchange, it was learned that the original loofah loft of Master Liu was not able to control Starlings in time, resulting in an outbreak of insect pests and pulling out the park early. However, he only pulled the tree out and did not clean it out of the booth in time. After a few days, When the debris was cleared again, a large number of red spider webs were found on the nylon rope.
The author believes that drawing out the park is a big mistake for pest control. Master Liu’s practice of making light and waiting for the tree to dry and then clearing out of the garden makes it possible for pests and diseases such as red spiders to hide or sleep dormantly. Adults, eggs, etc., fall on the ground or enter the soil. The difficulty of prevention and control laid a hidden danger for the next vegetable management. Of course, not only is this a kind of pest of red spider, and in recent years, small pests such as whitefly and hummer, as well as various diseases, have been able to sneak into the soil or produce spores when encountering harsh environments such as high temperatures, thereby increasing resistance to harsh environments. ability.
The correct approach should be: Immediately after pulling the garden, remove the trees from the shed, and clean up all the mulch and weeds in the shed. Then, use high-temperature stuffy sheds or chemical fumigation to kill pathogens to the maximum extent and reduce the number of worms. To the minimum, reduce the threat to the next vegetable.
Another common mistake in drawing gardens is that some vegetable farmers have only cleared stems and vines, and a large number of roots remain in the soil. This is also a mistake. Because there are a lot of pests in the soil, after the roots die, they will multiply in the remaining roots and become the “blight†of the next crop of vegetables. In particular, various root diseases such as root rot, stem rot, bacterial wilt, blight, and root knot nematodes have already occurred, and root systems must be thoroughly cleaned. In the severe greenhouses with root-knot nematodes, it is important to pay attention to them. It is an excellent opportunity to eliminate root-knot nematodes at the time of gardening. This opportunity can be used to bring root-knot nematodes attached to the roots to the surface, using high-temperature stuffy sheds or chemical treatment. Easily kill root-knot nematodes. There are fewer plant residues in the soil, and naturally fewer pathogens are attached to them, which can greatly reduce the chance of infection of diseases and insect pests in the next crop. After removing the garden, the roots in the soil are promptly removed, and the amount of self-toxic substances in the soil can also be reduced, thereby reducing the harm caused by the heavy carp.
Therefore, it is best to pull out all plant roots when the vegetable is pulled out. If the soil is dry, you can pour a little water before pulling the garden to moisten the soil and make it easier to pull out. If necessary, shovels can be used to remove a large number of fibrous roots that remain in the soil. In addition, it is best to mark the diseased plants before pulling out of the garden. After removing the garden, focus on the use of quicklime and disinfectants to remove the germs.