In late April, the temperature is warm, and the thrips on many local crops have been active in large quantities!
To this end, every day the agricultural materials are aimed at the thrips, and tell you about its harmful time, harmful symptoms, and prevention and control techniques.
<h1 class="pgc-h-arrow-right" > the thrips hazard period </h1>
Thrips prefer warm, dry weather, and when the temperature is between 23-28 degrees and the air humidity is between 40%-70%, it is very conducive to the occurrence of thrips. Almost every year, March to May, November to December, is the peak of the harm of thrips.
It's late April, the temperature is right, and thrips are already happening in large numbers in many places. Especially in the flowering stage, the young fruit stage of the crop, the most likely to lead to a large number of thrips.
<h1 class="pgc-h-arrow-right" > the harm of thrips </h1>
The scope of thrips hazards is very wide, and there are hazards for open crops and greenhouse crops. For example, wheat, rice, corn, eggplant, cucumber, tomato, watermelon, citrus, garlic, green onion and other crops. Especially at this stage, the occurrence of melons, fruits and vegetables, garlic and citrus is particularly serious.
Thrips are pests of file suction mouth organs, and the harm to crops is mainly that its larvae and adults file the sap of the young parts of crops, such as the main manifestations of crops are as follows:
As long as these symptoms appear on the crop, the yield or quality of the crop will be affected to some extent. This is definitely a serious blow to the income of growers, losing not only crops, but also a lot of hard-earned money!
In any case, preventing or controlling thrips at this stage is a crucial thing!
<h1 class = "pgc-h-arrow-right" > thrips control techniques </h1>
In view of the harm of thrips, what kind of medicine is used, presumably many growers have an understanding, so how can we effectively and comprehensively prevent and control thrips? To summarize the 5 major tips for preventing thrips:
1. Don't wait for thrips to flood before taking medicine
Once the thrips occur, the crop must suffer from different degrees of harm, and, because the thrips have a strong reproductive capacity, they will basically not be controlled immediately at the beginning, and it will occur intermittently. So, it's too important to control thrips in advance!
2. A variety of agents are used alternately, or additives are added
Thrips are file suction mouthpieces, it is recommended that you try to choose gastric toxic pesticides, the prevention and control effect will be better. In order to avoid thrips becoming resistant to the agent, it is recommended to use multiple agents alternately. In addition, when taking drugs, you can add silicone, white sugar or brown sugar, which will have a better effect on booby-trapping.
3. The effect of morning and afternoon spraying is good
Thrips lie out at night and are afraid of strong lights. It is recommended that you do the drug at 5-6 pm. If you want to control the thrips in the flower buds, choose 7-9 o'clock in the morning. Because the early flowers are open, when spraying, the sprayer is used to support the upward beating, the effect is the best, and the flowers meet in the afternoon, at this time it is not easy to kill the thrips that eat the flowers.
4. The scope of spraying should be comprehensive
The thrips are relatively small, difficult to spot easily, and very hidden, and it is difficult for ordinary potions to hit it. It is recommended that when you hit thrips, you must hit the crop only in this way can you better control thrips.
5. The number of prevention and control cannot be less
Crops in the flowering stage, flowering and young fruit stage, it is easy to lead to a large number of thrips, this time the control is particularly important. It is recommended that you give anti-thrips medicine at least 2 times before flowering; when more than two-thirds of the crop is spent, you should give anti-thrips medicine again. In this way, the occurrence of peel fruits can be reduced.
<h1 class="pgc-h-arrow-right" >in addition, note that:</h1>
In addition to directly causing harm to thrips, some thrips can also cause the occurrence of viral diseases.
For example, smoked thrips will spread under certain conditions, and western flower thrips will spread, seriously harming tomatoes, tobacco, lettuce, pineapples, potatoes and other cash crops!
Hurry, it's late April,
The temperature is suitable,
The prevention and control of thrips must be on the agenda!
Be careful that the late thrips can't be prevented,
Serious damage to crops, causing major economic losses!
Quick, tell the growers around you,
Hurry up and prevent it!
(Daily agricultural materials original, thanks to Teacher Xiao Yucheng for the technical support of this article, please contact the opening list for reprinting)