Chapter 12 Pest control points

Insect control must pay attention to the following points: Knowing the insect situation early generally depends on the state of the crops, especially the eggs and droppings.If there are small black dung particles on the ground, then the insect infestation here is already serious.Big green meat worms, small orange beetles, small hemp-colored flying insects, and small black caterpillars, although they haven't started to eat away at the branches and leaves, may have sneaked into the hearts of flowers or fruits, working secretly there.If there is termite damage on the trees, the yellow mud on the trunk expands rapidly, which is the obvious trace left by termites or yellow ants.The owner has to find and strike as early as possible.

Accurate application of pesticides can be divided into high toxicity and low toxicity, contact and sniffing, etc. There are many differences.Only by prescribing medicines to worms can get twice the result with half the effort, and prescribing medicines accurately at the right time must not be neglected.I was originally interested in green agriculture and determined to quit chemicals, but in fact I couldn't do it completely.When all the alternative methods are not enough to eliminate the pests, it is not easy to use small doses of pesticides without using highly toxic pesticides.However, it is not advisable to kill insects at sight.Sometimes after a gust of wind and heavy rain, there are many fewer insects, which can be described as "heavenly murder", and I don't know why.Some insects are not greedy. They eat some branches and leaves without causing serious harm, and then disappear automatically. It can be called "self-extinction".Under these circumstances, farmers might as well do nothing to prevent overreaction from causing more damage than insect damage.

Preventing accidental killing Insects are insects, which are divided into two categories: benefits and harms for humans.This is a strong word under the goal of human self-interest. Although I have doubts, I have the right to use it temporarily.Some flying insects have the function of pollination like bees, which are beneficial and harmless to crops, or less harm is more beneficial.Spiders are annoying, they secretly pull threads and weave webs among the trees, making people feel itchy when they bump into them accidentally, and they seem to have nothing when they really scratch—they quickly restore the blockade and weave webs on the road you just walked The speed and the length of the net are simply astonishing.But they happen to be the killers of many pests, and they should be forgiven for disturbing human beings by mistake.There is also a kind of black multi-legged reptile, some colorful hard-shelled ladybugs, which are ugly and reproduce very fast. They often climb up the steps in twos and threes, and sacrifice themselves under the soles of people's shoes.But these insects eat mud and do not harm crops.They have more shells and less meat, and they never attract the interest of chickens and ducks.

Green insect control also has to weigh the pros and cons. Wearing presbyopic glasses to catch insects in the vegetable garden is a good method, which can replace spraying.However, the efficiency of this kind of embroidery-like manual work is too low, and it can be placed in a small vegetable garden, and it is difficult to solve the problem of large-scale production.The release of chicken soldiers and ducks can be regarded as biological pest control, but chickens and ducks are eaten with both meat and vegetables, and indeed some pests are pecked away, and the melons and vegetables are eaten to pieces.Compared with its gains and losses, it is not necessarily cost-effective.There is also a power grid bat, which is a new product for killing mosquitoes. It is also effective for shocking flying insects without causing chemical pollution.Its disadvantage is that it is capable of air combat but inconvenient for land combat, and it has nothing to do with reptiles such as ground silkworms and core borers.When I was an educated youth, farmers also widely used a moth trap lamp. Whenever rice planthoppers and other pests became moths, we would go to the field to place some wooden pots at night, fill the pots with water, add a little diesel oil, and then Light an oil lamp and use the phototaxis of moths to lure them into the water to be poisoned by diesel oil.I remember that the sky was full of stars, the earth was full of lights, and the world was like a fairy tale. When I was in a trance, I didn't know where I was.

Why aren't farmers using this beautiful method of pest control right now?Is diesel too expensive but not as cheap as pesticides?Or do you think the process of placing pots and lighting lamps is too cumbersome? Insects in the countryside vary greatly, and they are the most abundant but most hidden living creatures, just like the fluff of the mountains and forests, the denseness of the wild land, and the dust with mouths in nature.Once these guys show interest in people, they may also send a warm greeting, a slightly rough intimacy, such as biting some surging red spots on people, which are extremely itchy, tormenting, and even poisonous. The marks do not fade for a long time.

People in the city are most afraid of this kind of closeness, especially many women, who may not be afraid of hardship or death, but will fold their arms and scream when they hear about bugs. But come to think of it, is it still country without that bite?Is it still nature?That kind of innocuous countryside is at best a resort, a kind of off-site transplant of a partial city.In other words, a man is probably not really a countryman until his skin has been roughened by the worms, and he no longer needs ointments and potions, and is even insensitive to it. Ms. J. Lovell, my English translator, is from the UK, a place where a lot of chemicals have been used to kill mosquitoes for a long time, a place that tries to make sure that people don't feel pain.She lived in Baxidong for a few days, scratching a string of red spots on her legs: "The ecological environment here is good, and there are still mosquitoes!"

There was an almost overjoyed tone in her tone.She seemed to think that the itchy erythema was not only the entry code for rural life, but also a necessary sign of ecological safety.