Mangosteen |
Pesticides, which are used to control diseases and insect pests, are a good thing for fruit growers, because we know that in the absence of pesticides, our fruits basically cannot be sold, sold, and taste bad, and how can large cherries with diseases and insects be sold to people who love big cherries.
However, even if pesticides are indispensable, if the amount of drugs used is not right, the drugs used are not right, and the time is not right, it will have a very serious impact on the big cherries, and even endanger health and damage the soil. Therefore, we must be cautious and use pesticides scientifically.
Now, let's introduce the commonly used pesticides in chronological order.
In late March, Qingyuan medicine
After cleaning up the orchard in the spring, spray each corner of the orchard with 5 degree stone sulfur compound plus 0.3% sodium pentachlorophenol or 5% ferrous sulfate, or 500 times tolbucin, in order to remove bugs and eggs that have successfully overwintered.
Using some plant antifreeze, or setting up rain protection measures, or smoking, can prevent the cold of spring from causing harm to the flowers or fruits.
To paint the tree body white sterilization, if you encounter dry rot, you should scrape the dry rot place clean, and then apply white sterilization.
If root cancer is found, dry the roots, or undergo surgical resection and then treat with nimbycin or cinnin.
For rot disease, glue disease, scrape first, pay attention to vertical scraping, do not scrape horizontally, cut neatly to facilitate healing, and apply it with inocycline or niyramycin.
If there are many insects, you can use some 10% imidacloprid 4000 times plus 40% chlorpyrifos 1500 times liquid to control aphids, aphids, leafhoppers, mesenchymals, leaf curlers and so on. If the amount of insects is small, do not use drugs, killing bees will affect pollination.
Early April before germination
Before germination, stone sulfur compound + anti-brown rot (50% sokrin wettable powder 1500-2000 times liquid, or 77% killable wettable particle powder 500 times liquid, or 80% Daisen manganese zinc wettable powder 800 liquid)
Before cherry germination (bud germination period), the whole tree is evenly sprayed with 4 to 5 ° be stone sulfur compound, or 30% stone sulfur mineral oil microemulsion 500 to 600 times liquid, or 1:1:100 Bordeaux liquid, eradicating the fungal source that overwinters on the branches. After germination or flowering, spray 50% soxkolin wettable powder 1500 to 2000 times, or 43% tetanoxazol suspension 3000 times, or 80% daisen manganese zinc 700 to 800 times liquid 10 to 14 times after spraying again, spray 3 to 4 times continuously, combined with spraying fungicides to add amino acid nutrients.
Early May before flowering
Before flowering, 0.3% urea plus 0.3% borax and 600 times ammonium dihydrogen phosphate were sprayed to improve fruit set. Spray 200 times half-volume Bordeaux liquid, spray 0.3 degree stone sulfur compound to prevent felt disease.
In mid-May, when the flowers bloom to 20%-30%.
Before and after flowering, spray 180 times half a amount of Bordeaux liquid or avermectin to prevent and control perforation disease, leaf spot disease, brown rot, gray mold, red spider, leaf curl, pear small heartworm, leafhopper, bug, shell worm.
In late May, when the flowers bloom to 70%-80%.
Spray every 7-10 days before and after flowering, spray 180 times the amount of Bordeaux liquid or avermectin to prevent perforation disease, leaf spot disease, brown rot, gray mold disease, red spider, leaf curl, pear small heartworm, leafhopper, bug, mesenchylode.
Late May flowers fall behind
At this stage, biological fungicides such as nimbycin can be sprayed again to prevent perforation disease. During this period, pay attention to potassium supplementation, calcium supplementation and other trace elements to supplement nutrition to prevent fruit fall.
Every 7-10 days after flowering, the foliar spray is sprayed with the fungicide zinc daisen and agricultural streptomycin.
Late May Childhood
Spray 180 times half a quantity of Bordeaux liquid, fungicide zinc daisen, agricultural streptomycin.
Late May Hardcore Fruit expansion to ripening
Spray calcium on the foliar surface, after flowering to before harvesting, spray 600 times the amino acid calcium on the foliar surface 4 times. Small water irrigation do not flood irrigation. Spray 800x dentiter, carbendazim or 500x tolbutzin every 10-15 days to control powdery mildew. (Foliar fertilizer fruit and vegetable calcium fertilizer, potassium dihydrogen phosphate supplement nutrition.) ）
In late May, the cherries are just turning red
Start spraying fruit fly medicine, once every 6 days, at least 6 times until the end of the harvest. Spray 1000 times tolbuzin or 800 times carbendazim, spray 300 times ethylphosphorus aluminum, control downy mildew.
To control fruit flies, spray pollution-free insecticidal pesticides on orchard grounds or weeds every 10 days. Can use 0.6% matrine 1 000 times liquid, 1. 8% avermectin emulsion 1 500 times liquid, 2.5% cypermethrin 1000 times liquid. When spraying, only spray overgrown places, no grass can be sprayed, the liquid of medicine to participate in 4% sweet and sour liquid is more effective.
In mid-June, after the harvest is completed
Face spraying with 4% chlorpyrifos 1500 times decamethyl tolbuzin 1000 times ten times subazole 1000 times to prevent cervical ferocity, mesozole, red spider, large green leafhopper, brown spot disease, perforation disease.
Spray once to exterminate juvenile urea and valutazole to control a variety of lepidopteran pests and diseases. Spray 1000-1500 times of pentrazole or 68.75% oxazolone manganese zinc water dispersible granules every 20 days or so.
Pay attention to the prevention and control of fruit flies, after the fruit is harvested, it is necessary to remove the fallen fruits and rotten fruits in the orchard in time, and concentrate on dumping them into the digester or crushing them to eliminate fruit flies and fruit fly eggs.
Early June to August
In order to control various diseases and pests, pesticides can be sprayed every 20 days or so, and if there is a lot of rain in that year, you can consider increasing the number of sprays.
Commonly used insecticides are: chlorpyrifos, phosphorus, bifenthrin, cypermethrin, urea, avermectin, broom net, triazoltin.
Commonly used fungicides are: carbendazim, zinc daisen, manganese zinc, fluosilazole, phenoxymethozole, diazolol, yepcisole, chlortetracycin, and lithromycin.
Large cherries, avoid the use of 2,4-butadiene herbicides
Note that these pesticides must not be used, some are harmful to health, some are forcing soil,
666, DDT, toxaphene, dibromopropane, insecticide, dibromoethane, herbicides, aldrin, diethrin, mercury preparations, arsenic, lead, diqualt, fluoroacetamide, glycofluoride, poison rat strong, sodium fluoroacetate, poison rat silicon, methamphosphate, parathion, methyl parathion, sulfonus, mutamol, phosphorus, benzophos, earthworm thiophos, methylthiocyclus, calcium phosphide, magnesium phosphide, zinc phosphide, thiophosphate, fly phosphorus, borax phosphorus, terbutylthion, clonyllon, amesulfuron, mesulfuron, fumesine, furmecyl carboxidol, trichlorocycide , Lindane, endosulfan, bromomethane, filveramine, phosphorus carbicide, paraquat, 2,4-drip butyl ester, methylphosphorus, methyl isosalphos, carbofuran, amine thionium, oxylecono, ammonium, aldicarb, nephrophosphate
In addition, when purchasing pesticides, pesticides must be "three certificates" complete, pesticide registration certificate, production license, quality standard certificate. If the three certificates are complete, but there is no such letter on the certificate, the pesticide is also likely to be untrustworthy, such as ls, pd, xk, q, etc.
Author: Fruit lover Mangosteen