How to eliminate harmful snails in greenhouse vegetables?
Recently, many farmers’ friends have reported that they have produced a kind of pest that can eat the leaves under the vegetables and are close to the ground and very disgusting, especially in the greenhouse where leafy species are grown, such as spinach and Celery, etc., these pests can make the leaves hollow, and they leave a white blot on the top of the fruit, they are extremely harmful. The author believes that this is due to the slowly rising temperature outside the greenhouse, leading to the emergence of such pests, especially in the older greenhouses, the occurrence of such pests is even more powerful.
The pest that causes such damage to the vegetable may be a snail that is harmful, or a snail that has no shell. The main methods to control these pests are:
First, we can sprinkle some toxic soil or granular pesticides on the farmland. The ingredient of the agent that kills these two pests is metaldehyde, which is usually a granule. The appearance of metaldehyde is light blue and has a very unusual aroma, which is extremely attractive. When the pest is tempted to eat or after encountering the agent, a large amount of acetylcholinesterase is released from the snail, thereby damaging the special mucus in the snail, which will cause the snail to quickly remove moisture and cause nerves. Paralysis, because many body fluids are lost and its cells are severely damaged, eventually causing cockroaches to die in a short period of time. We can also choose to use a powder containing metaldehyde and mix it with about 5 kg of fine sand, and then spread these agents evenly on the ground, which will also have a great contact effect.
Second, because the key substances that sustain life are the body fluids of these pests, once their body fluids are consumed in a large amount, it is easy to cause the pests to die quickly due to dehydration. So we sprinkled some lime, grass ash or salt in the greenhouse to collect body fluids from them.
Third, because these pests prefer to eat leafy vegetables, we can use lettuce, cabbage leaves, etc. as bait to eliminate pests. We just need to place the leaves where they are usually found, and then sprinkle some contact-type pharmacy around the leaves to kill the cockroaches. We can also add some beer after crushing the leaves, then add a certain amount of imidacloprid, and sprinkle it in the position of the cockroach, so that it can achieve good elimination.
China Pesticide Network ( )
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