In rural areas, farmers who grow tomatoes in greenhouses are most afraid of flying locusts and locusts. Once the pests break out, the light is reduced and the heavy side is not harvested. A friend's two greenhouses that had just been transplanted some time ago have not been in the past two months. The cornices in the greenhouse broke out, and the pesticides cost a lot. In the end, there was no prevention. The growers know that the locusts and mites are the culprit causing the tomato virus disease. There is really no way, the peasant can only be destroyed.
Can it be said that the tomato planthoppers and locusts are difficult to control? Hui Nongwang Xiaolin heard that there is a tomato grower in the village of Ditch Bend called Zhang Long. He has been relying on experience in planting tomatoes to control planthoppers and locusts in recent years. A set of very effective prevention measures was concluded. What is the magic method? Follow Xiaolin to see it!
In the past few years, Zhang Long has been planting greenhouse tomatoes for a living. Some people say that Zhang Long was a nerd in the 1990s when he was admitted to university. People became very introverted.
Introverts tend to be very persistent about what happens. Zhang Long, who had not been admitted to the university to stay in the countryside, began planting greenhouse tomatoes. Zhang Long also encountered problems encountered by all tomato growers. Over the years, especially the emergence of locusts and locusts, replanting sheds. Waste of money for Zhang Long, I did not know how many times.
In order to obtain the ability to prevent the outbreak of locusts and locusts in advance, Zhang Long did not know how many books were rotted.
One year, the farmer's shop in the village sold a wheat seed dressing agent. After the wheat seeds were seeded by using the pesticide imidacloprid, the aphids in the second year of wheat control were basically prevented, and the purpose of controlling the aphids was not to be sprayed in the second year.
At that time, all the wheat planted by Zhang Long was seeded with this pesticide, and the result was as the owner of the agricultural store said.
The pesticide imidacloprid seed dressing can control wheat aphids. If imidacloprid is used on tomatoes, can it also control the planthoppers and mites?
When Zhang Long bought the pesticide again, he began experimenting on the tomato. The wheat was used for seed dressing. When Zhang Long used the tomato, it was applied at the time of transplanting.
Half a month later, the cornices in the tomato greenhouse began to occur, and the greenhouses planted by the Zhanglong family also occurred. The careful Zhang Long found that the insect pests were much less than the obvious pests. In order to worry about the outbreak of the insects, Zhang Long still used pesticides.
When the tomatoes are transplanted, the imidacloprid can be used to effectively control the planthoppers. When planting tomatoes in the second year, Zhang Long began to introduce this method to other villagers.
Zhang Long: "I told the farmers in the village that the insects can be used to control the plants with the imidacloprid. No one believes me, because I used it myself last year, and I also fight drugs."
No one believes that in the second year, Zhang Long continued to use imidacloprid for tomato seedlings according to his own method. When the tomatoes just started to bloom, the cornices in the greenhouse began to erupt. The growers used pesticides over and over again, but the effect was very small. Finally, many tomatoes grown by farmers had to be unplugged.
Among the tomato greenhouses planted in the whole village, only Zhang Long’s greenhouses have few flying rafts, which rarely cause harm.
Nowadays, in the village of Ditch Bend, as long as the villagers plant economic crops that are prone to flying locusts and locusts, they will apply the pesticide imidacloprid before transplanting.
Expert analysis: "Zhang Long's method is correct. With imidacloprid, it can be applied underground, and the purpose of controlling sucking pests on the ground."
Why use imidacloprid underground to prevent mites from flying?
1. Imidacloprid is applied around the roots of tomatoes. After being dissolved in water, it can be effectively absorbed by the roots of tomatoes and transported to the stems and leaves.
2. When sucking pests feed on the juice of tomato leaves, they will die of poisoning.
3. The half-life of imidacloprid in soil for more than 100 days can effectively control the planthoppers and aphids throughout the growing period of tomatoes.
The half-life of imidacloprid in soil is very long, but the residual time on crops is only seven days, so farmers do not have to worry about imidacloprid residues on tomato fruit.
Need to remind growers, imidacloprid can only effectively control sucking pests, such as planthoppers, mites, thrips, etc., can only be a evasive effect on other pests.
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