Bao Ling cotton is an insect-resistant cotton, rather than insectless cotton. It only kills young larvae of lepidopteran insects, but has no killing effect on all other organisms in the cotton field, that is, boll cotton does not work on all pests, beneficial insects, and diseases other than Lepidoptera. After several years of research, the main insect pests in the Baoling cotton field are sucking mouthpart insects, including blind stink bugs, red spiders, thrips, cotton aphids, and cotton leafhoppers. The reason is that boll cotton fields use almost no pesticides to control bollworms, which makes these pests that do not need special control in conventional cotton fields need to be controlled in boll cotton fields. It is recommended to use anthrone in the control of spider mites, and to use insecticides such as imidacloprid (Dai Gongchen) that are selective and safe to natural enemies when controlling aphids and thrips. Because the concentration of toxic protein in the boll cotton powder is low, when the bollworm is outbreak, individual bollworm larvae may survive by eating pollen, and special attention should be paid to strengthening the third and fourth generation (ie, cotton field second, Three generations) Systematic monitoring of cotton bollworms. When it is found that Baoling cotton field has 20 outbreaks of 3rd instar and above per 100 strains of cotton bollworm, comprehensive prevention and control measures should be taken in time. Since most of the cotton bollworm larvae are hidden in the flowers, manual flower picking is an effective method of prevention and control. Among lepidopteran pests, the control effect of boll cotton on Spodoptera litura and Spodoptera exigua is not particularly satisfactory, and monitoring should be strengthened. For all other pests and diseases, control can be done by reference to conventional methods of controlling cotton fields.
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