This period is the prone period of the diamondback moth, especially the Chinese cabbage, cabbage, radish and other autumn crops serious harm, the hazard rate of up to 100%, resulting in a loss of 50% to 80% of output, and even cause serious losses. Zhang Wanmin, agronomist of the Department of Phytoprotection and Prevention of the Provincial Plant Protection Station, explained that the occurrence of Plutella xylostella in our province is in August and September, and the optimal temperature for development is between 20 and 30°C. At this temperature, the eggs and larvae of the diamondback moth The larvae have a high survival rate and the adults have the highest egg production. The control of Plutella xylostella may be a biological control technology. According to the occurrence and drug resistance of Plutella xylostella, Caixa, avermectins, Bt, plant pesticides, and polyhedral viruses were used to control Plutella xylostella directly. On the other hand, it protects natural enemies such as small black ants, codling moth, and codling moth, so as to control the natural enemies and control drug-resistant pests. When the Plutella xylostella significantly occurs, growers can choose to use high-efficiency, low-toxicity, low-residue pesticides for prevention and control. The appropriate period of control is from egg hatching to second instar larval emergence. According to the hazard characteristics of the diamondback moth, we should focus on the spray treatment of leaf back and heart to improve the control effect. Can use 2.5% spinosad (Caixi) 1500 times, or 10% chlorfenapyr (divide) 1200 to 1500 times, or 5% fipronil suspension (Frigid) 2500 Double liquid, spray control.
Goji Berry ( [Goji" means [happy") , also called wolfberry, has been used for thousands of years by herbalists in China to protect the liver, help eyesight, boost immune function, improve circulation, and promote longevity and overall well being. It has only recently gained popularity in the west, it has become so polar, in fact, the Time Magazine recently named the Goji berry as [super-fruit" of the year. A big reason why Goji berries have quickly become a favorite nutritional supplement is that its impressive list of ingredients. The Goji berry, also called the wolfberry, is a bright purplish red or purple red berry that comes from a shrub that is native to China. In Asia, goji berries have been eaten for generation in the hope of living longer.
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