Usually from early July to late August, cotton enters the longest stage of growth and development - the flowering and boll period. At this time, natural resources such as light, heat, water and gas are abundant; on the other hand, natural disasters such as wind, hail, drought, and waterlogging frequently occur during this period, and pests and diseases are seriously endangered. The farmer said that "cotton is volute, good and bad, bad can get better", this is the truth.
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It is expected that cotton mites in the Yellow River Basin will be heavily biased this year and need timely prevention and control.
This year, many cotton in the main cotton producing areas have been affected by low temperatures and excessive rains from sowing to buds. The progress of fertility has been delayed by 7-10 days compared with normal years, and the seedlings are generally not as good as before. According to the analysis of the current occurrence of cotton pests and diseases, meteorological conditions and other factors, the overall pests and diseases of cotton in the middle and late this year will be moderate, and the occurrence of insect pests may be mostly lighter than last year, but the occurrence of diseases will be more important than last year.
In recent years, insect-resistant cotton has been widely promoted, which has reduced the number of times of cotton field use, but has accelerated the breeding of cotton blind mites. In addition, cotton blind cockroaches are like wet pests, rainy years and irrigated cotton areas, the number of cotton blind cockroaches is generally more serious.
It is expected that in the middle and late stages of this year, cotton mites in the Yellow River Basin will occur more heavily, and the cotton areas in the Yangtze River Basin will occur moderately. In addition, the three generations of cotton blind cockroaches will occur from late July to mid-August. It is recommended that if cotton fields have been invaded by cotton blinds, the spraying time is preferably in the evening, because dew in the morning will generally reduce or lose the concentration of the liquid; at noon, there will be shortcomings such as rapid evaporation of the liquid and affecting flowering and pollination.
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Tough framing
Double-pawl brake designed for safety and reliability
Standard bearings to increase the efficiency and simplify maintenance
Machined alloy steel load sheave to ensure smooth engagement with load chain
Roll-edge hand wheel cover provides smooth operation of the hand chain when pulled sideways
Double enclosure of the brake mechanism to keep out rain water and dust
Over load protection device is available
Certificate: GS, CE, ISO9001
Dimension: 0.5t-20t, 0.25t-10t