Disinfect the seeds before sowing. In the field, it is necessary to weed, loosen soil and apply fertilizer in real time to improve the ground temperature and plant disease resistance(30 gallon grow bags). At the early stage, the lesions on the leaves were dark brown, polygonal, with yellow halo, developing along the veins.
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Watermelon seedlings in the early stage of disease can be used 77% copper hydroxide (kill 3000) wettable powder 600 times liquid(5 gallon plant container), or 57.6% copper hydroxide (coronarpine) water dispersible granule 800 times liquid, or 72% agricultural Streptomycin Sulfate Soluble Powder 2000 times liquid spray(104 cell seed starting trays). The disease spot occurs on the top surface of the fruit, and there are large water soaked light brown plaques on the edge.(cheap 11 inch plastic plant pots manufacturers usa)
After the fruit is damaged(3 gallon fabric grow bags), the dosage of organic silicon adjuvant jiexiaoli or thorough 75 ml can be used according to the amount of liquid medicine per hectare, which can improve the control effect and save the dosage. Fruit rot, also known as fruit spot, rot spot and non stain disease, can cause watermelon to rot in the field and during storage and transportation(50 cell plastic propagation tray wholesale price), resulting in a large number of losses.
(cheap 11 inch plastic plant pots manufacturers usa)Spray continuously for 2-3 times. Before sowing, the seeds should be disinfected, soaked in 50-54 ℃ warm water for 20 minutes(shallow plastic plant pots), and dried after being fished out; or 30% succinic acid copper wettable powder 500 times liquid, or soaked in 200 mg / L agricultural streptomycin sulfate for 2 hours, dried after being fished out(50 cell seed starter trays). In the early stage of the disease, 77% copper hydroxide (can kill 3000) wettable powder can be used for 600 times.
Or 57.6% copper hydroxide (crown mushroom) water dispersible granule 800 times liquid(20 gallon grow bags), or 30% succinic acid copper wettable powder 500 times liquid, or 72% agricultural Streptomycin Sulfate Soluble Powder 2000 times liquid spray. Spray once every 5-6 days, according to the amount of liquid medicine per hectare(20 cell seed starting trays), take part in organic silicon adjuvant jiexiaoli or thorough 75 ml, which can improve the control effect and save the dosage.
In order to control the spread of aphids(7 gallon fabric grow bags), yellow boards were used to lure aphids in the field, which had sticky effect on the aphids that had just moved into the melon field and delayed the transmission of aphids. It is better to choose a 15cm diameter potting basin for curing, and is also conducive to the development of root system for indoor potting(72 cell seed starter trays). During the growth period, the true leaves and fruits will be ill.(cheap 11 inch plastic plant pots manufacturers usa)
When aphids occur in a large amount, they are controlled by spraying. 0.6-0.75l 3% acetamiprid emulsifiable concentrate(germination pots), 0.3KG 10% imidacloprid wettable powder and 84-168ml 22% thiamethoxam · HCF (alika) microcapsule suspension can be selected per hectare(40 cell seed starting trays). For the mature watermelon with slight epidermal disease in the early stage, which does not waste space, it can be used in real time after harvest to reduce the loss.
(cheap 11 inch plastic plant pots manufacturers usa)Then the peel breaks, overflowing bacteria and pus, causing rotten melon(5 gallon grow pot). Or 40% Omethoate cream 1.5 liters, or 30% methoxy Omethoate (fast killing) emulsifiable oil 0.3 liters of water spray. When spraying, it can increase the control effect and save the dosage by participating in organic silicon adjuvant jiexiaoli or thorough 75 ml per hectare(18 cell seed starting trays). It has many functions of food and medicine, and has a broad development prospect.
