Practice has proved that spraying pesticides in summer, whether for food crops, vegetable crops, cash crops, or fruit trees, should be the best time between 8:00 am and 5:00 pm. What is the reason for this?
This is because: around 9 am, the general dew is dry, the temperature is not too high, it is the sunrise, pests feeding, activity, mating the most vigorous time, so the medication at this time, will not be washed or diluted by the dew Reduce the efficacy of the drug, and will not affect the efficacy of the drug due to high temperature. On the contrary, the use of drugs at this time will increase the chances of pests feeding and taking medicine, effectively improving the lethality of pesticides. At about 5 o'clock in the afternoon, the sun is already westward. It is the "Japanese medicine Xishan evening". At this time, the light is getting weaker, and the night-time pests are active (feeding, mating, etc.). Higher killing effect.
Also note that it is not advisable to spray pesticides at noon. Therefore, the temperature is high, the sun is strong, and some pests are afraid of glare and hide in the backlight, or even stop the activity. In addition, the drug decomposes rapidly at high temperatures, so the efficacy is reduced. At the same time, the general drug solution is evaporated at noon, which is easy to cause poisoning of humans and animals. The prevention and control of common diseases and insect pests in vegetables in high temperature and high humidity seasons in China is currently in the climate of high temperature and high humidity. It is suitable for the spread of various diseases and insect pests of vegetables. In order to ensure the harvest of summer vegetables, it is necessary to do a good job in the prevention and control of various common pests and diseases in vegetable production. .
First, strengthen cultivation management, improve the disease resistance of vegetables, drain the accumulated water in time, and enhance the vitality of the root system. The shed vegetable should be uncovered to reduce the temperature and humidity in the shed and improve the disease resistance of the plant.
Second, the use of chemicals to control the following pests and diseases (1) powdery mildew: start the drug at the beginning of the beginning. It can be sprayed with 10% Shigao water dispersing agent 1000-1500 times liquid or 40% DuPont Fuxing emulsifiable oil 5000 times liquid, once every 7 days, even 2 to 3 times. Or to carry out the shack, the shed can be killed at 42-45 ° C for 2 hours at noon to kill the pathogen, the effect is obvious.
(2) Cruciferous soft rot: 72% agricultural streptomycin 4000 times solution; neomycin phytomycin 4000 times liquid or 77% can kill 600 ~ 800 times liquid.
(3) Melon aphids: 0.6% sea positive insecticide 1250 ~ 1500 times liquid.
(4) Yellow-curved Bounce: 40% lass lotion 1000 times liquid or 90% crystal trichlorfon 800 times liquid spray, even 2 to 3 times, serious fields can be combined with irrigation roots.
(5) Plutella xylostella: 5% Regent 1000-1500 times liquid or 5% TAI Bao EC 2000 times liquid control.
(6) Red spider: 20% 哒螨 3000 3000 times liquid plus 1% worm light 3000 times solution.
Then what is the difference between 940nm and 850nm?
940nm infrared LEDs are totally invisible to the naked eye, which means you can't see whether the 940nm working or not. Unless you watch it through some device(like phone's camera), which will show some purple or white color light.
The 850nm infrared LEDs have a very slight reddish when it's working, which means you can see if the 850nm LED is working.
Under the same power, radiation intensity of 850nm will be higher than the 940nm. Of course, 940nm also has its own unique advantages. It is the naked eye that is indistinguishable from work or from work, therefore, its application has been widely used in many special markets in the modern era.
We supply the 5050 940nm SMD IR LED and 5050 850nm SMD IR LED products with difference power, such as: 0.1W 940nm, 0.2w 940nm, 0.3w 940nm, 0.4w 940nm, 0.5W 940nm, 0.6w 940nm, 0.8W 940nm, 1w 940nm, 3W 940nm, 0.1W 850nm, 0.2w 850nm, 0.3w 850nm, 0.4w 850nm, 0.5W 850nm, 0.6w 850nm, 0.8W 850nm, 1w 850nm, 3W 850nm and so on.
This is because: around 9 am, the general dew is dry, the temperature is not too high, it is the sunrise, pests feeding, activity, mating the most vigorous time, so the medication at this time, will not be washed or diluted by the dew Reduce the efficacy of the drug, and will not affect the efficacy of the drug due to high temperature. On the contrary, the use of drugs at this time will increase the chances of pests feeding and taking medicine, effectively improving the lethality of pesticides. At about 5 o'clock in the afternoon, the sun is already westward. It is the "Japanese medicine Xishan evening". At this time, the light is getting weaker, and the night-time pests are active (feeding, mating, etc.). Higher killing effect.
Also note that it is not advisable to spray pesticides at noon. Therefore, the temperature is high, the sun is strong, and some pests are afraid of glare and hide in the backlight, or even stop the activity. In addition, the drug decomposes rapidly at high temperatures, so the efficacy is reduced. At the same time, the general drug solution is evaporated at noon, which is easy to cause poisoning of humans and animals. The prevention and control of common diseases and insect pests in vegetables in high temperature and high humidity seasons in China is currently in the climate of high temperature and high humidity. It is suitable for the spread of various diseases and insect pests of vegetables. In order to ensure the harvest of summer vegetables, it is necessary to do a good job in the prevention and control of various common pests and diseases in vegetable production. .
First, strengthen cultivation management, improve the disease resistance of vegetables, drain the accumulated water in time, and enhance the vitality of the root system. The shed vegetable should be uncovered to reduce the temperature and humidity in the shed and improve the disease resistance of the plant.
Second, the use of chemicals to control the following pests and diseases (1) powdery mildew: start the drug at the beginning of the beginning. It can be sprayed with 10% Shigao water dispersing agent 1000-1500 times liquid or 40% DuPont Fuxing emulsifiable oil 5000 times liquid, once every 7 days, even 2 to 3 times. Or to carry out the shack, the shed can be killed at 42-45 ° C for 2 hours at noon to kill the pathogen, the effect is obvious.
(2) Cruciferous soft rot: 72% agricultural streptomycin 4000 times solution; neomycin phytomycin 4000 times liquid or 77% can kill 600 ~ 800 times liquid.
(3) Melon aphids: 0.6% sea positive insecticide 1250 ~ 1500 times liquid.
(4) Yellow-curved Bounce: 40% lass lotion 1000 times liquid or 90% crystal trichlorfon 800 times liquid spray, even 2 to 3 times, serious fields can be combined with irrigation roots.
(5) Plutella xylostella: 5% Regent 1000-1500 times liquid or 5% TAI Bao EC 2000 times liquid control.
(6) Red spider: 20% 哒螨 3000 3000 times liquid plus 1% worm light 3000 times solution.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
5050 SMD IR LED supplier from China.
For 5050 IR LED, we supply variety of products, there are 5050 SMD LED with 6 pin and one chip infrared 5050 SMD, 5050 SMD LED with 6 pin and two chip infrared 5050 SMD,5050 SMD LED with 6 pin and three chip infrared 5050SMD, 5050 IR LED with 2 pins and one chip, 5050 IR LED with 2 pins and multi chip etc.
In addition, we also add the lens on the top of SMD LED, which can make the SMD LED have an angle like those Thought-hole LED.
For example: 5050 SMD 850nm IR LED with 30 degrees, 5050 SMD 850nm IR LED with 60 degrees, 5050 SMD 850nm IR LED with 90 degrees, 5050 SMD 940nm IR LED with 30 degrees, 5050 SMD 940nm IR LED with 60 degrees, 5050 SMD 940nm IR LED with 90 degrees, etc.
We also can customize the mold of ledns as you needed angle.
Then what is the difference between 940nm and 850nm?
940nm infrared LEDs are totally invisible to the naked eye, which means you can't see whether the 940nm working or not. Unless you watch it through some device(like phone's camera), which will show some purple or white color light.
The 850nm infrared LEDs have a very slight reddish when it's working, which means you can see if the 850nm LED is working.
Under the same power, radiation intensity of 850nm will be higher than the 940nm. Of course, 940nm also has its own unique advantages. It is the naked eye that is indistinguishable from work or from work, therefore, its application has been widely used in many special markets in the modern era.
We supply the 5050 940nm SMD IR LED and 5050 850nm SMD IR LED products with difference power, such as: 0.1W 940nm, 0.2w 940nm, 0.3w 940nm, 0.4w 940nm, 0.5W 940nm, 0.6w 940nm, 0.8W 940nm, 1w 940nm, 3W 940nm, 0.1W 850nm, 0.2w 850nm, 0.3w 850nm, 0.4w 850nm, 0.5W 850nm, 0.6w 850nm, 0.8W 850nm, 1w 850nm, 3W 850nm and so on.
5050 SMD IR LED,5050 IR LED 940Nm,5050 850Nm IR LED,5050 940Nm IR LED
Shenzhen Best LED Opto-electronic Co.,Ltd / BESTSMD CO LIMITED(HK) , https://www.bestsmd.com