The pests and diseases of winter pear trees mainly include pear beetle, pear bee, pear mites, pear black spot disease, pear black spot disease, red yellow spider, scale insect, etc. The seed net is arranged according to the above pests and diseases. Listed for the reference of the fruit friends.
Winter pear tree pest control method:
Method 1: Spray the ground on the pear tree garden:
The wintering adult worms were unearthed, and the pear mites were from mid-March to the end of March. The pears were from the end of March to the beginning of April, and the pear worms were in the middle and middle of April. Spread the medicine at the beginning of the excavation. Apply 4 kg of 5% trichlorfon powder to the acre, and mix fine soil or fine sand in the canopy drip line between rows. The effect is better. If there is light rain or shower after the application, the effect will be more obvious.
Method 2: Spraying the pear tree crown:
In the period of the pear beetle damage, the pears and pears are exposed to the peak period, and the drug control can play a role of pre-pressure control. Control pear aphids can use 90% crystal trichlorfon 700 times liquid or enemy kill 2.5% emulsifiable oil 1500 times liquid; control pear real bee can use chlorpyrifos 20% emulsifiable concentrate 2000 times liquid or 40% omethoate 1200 times liquid 2% insecticidal double 500 times solution can be used to control pear mites.
Red-yellow spiders can be controlled by alternating red and white eggs, egg yolks, and cockroaches. The prevention and control of scale insects can be controlled by killing phosphorus or dead cockroaches in time.
Winter pear disease prevention and treatment methods:
Prevention and control of pear black spot disease and pear black spot disease can be sprayed and controlled in time after harvesting of pear fruit. It can be used in the treatment of zinc, Fuxing and Bordeaux (1 kg of quicklime, 2 kg of Copper Sulfate, 200 kg of water), carbazole. Acid, R & F and other drugs are used interchangeably.
Magnesium Acetate is commonly used as a source of magnesium or for the Acetate ion in chemistry experiments. One example of this is when magnesium acetate and magnesium nitrate were both used to perform molecular dynamics simulations and surface tension measurements. One of the more prevalent uses of magnesium acetate is in the mixture called calcium magnesium acetate (CMA). It is a mixture of Calcium Acetate and magnesium acetate. CMA is thought of as an environmentally friendly alternative deicer to NaCl and CaCl2. CMA also acts as a powerful SO2, NOx, and toxic particulate emission control agent in coal combustion processes to reduce acid rain, and as an effective catalyst for the facilitation of coal combustion.
When magnesium acetate is mixed with hydrogen peroxide it acts as a bactericidal.
Magnesium acetate has been shown to be effective at ashing organic compounds in preparation for a fluorine analysis when high or low concentrations of fluorine are present.
Magnesium Acetate
Magnesium Acetate,Magnesium Acetate Tetrahydrate,Mg(CH3COO)2.4H2O,Food Grade Magnesium Acetate Tetrahydrate
Jiangsu Kolod Food Ingredients Co., Ltd. , https://www.kolodchem.com