Hazardous features:
The cotton sucker sucks the liquid juice on the back of the cotton leaf and the tender head part by sucking and sucking mouthpart, so that the cotton leaf deformity grows and curls to the back. Injury of cotton aphid mainly occurs at the seedling stage, the budding stage, and the seedling stage. The damage generally delays the development of the cotton seedlings, resulting in a late-maturing yield reduction. When severe damage occurs, the cotton seedling cannot continue to develop or even die; The cotton cocoon is known as the Fuxi, which causes the bolls to fall off, and some of them cause defoliation and reduce the yield. The cotton boll-opening period sometimes includes damage to the cotton bolls called autumn boil, contaminated cotton wool, and reduces cotton quality.
Control methods:
Agricultural control. The cotton and wheat crop rotation was implemented to prevent the winged toads from moving to the cotton fields by using the wheat barrier function, which facilitated the transfer of the natural enemies of the wheat plant to the cotton plants and enhanced the self-control ability of the cotton fields.
Use natural enemies. In the treatment of wheat fields, selective insecticides that do not kill natural enemies, such as anti-influenza, are used to protect natural enemies from transferring to cotton fields. In the field of cotton, the stilts are inserted and the natural enemies can be recruited, which can be well controlled. After the closure of cotton in mid-July, in the event of continuous rain for 5-6 days, the temperature rose to above 26°C after rain, molds could become prevalent and control of locust infestation. The most important thing for the protection and use of natural enemies is to not use drugs. Do not use drugs with scoop ratio below 1:150.
Chemical control. Seedlings of 100 seedlings with 3 leaves and 2500 shoots were used as control indicators. The average number of leaflets in the upper, middle and lower leaves of each leaf was 200 as the control index. When the cotton aphid reaches the prevention and control index, it is in the spotting stage and should be sprayed locally to avoid large-scale drug use. It can be used as a low-toxicity and high-efficiency insecticide, such as quick-killing, imidacloprid, and cockroach, and it can also be used to prevent and control three generations of cotton bollworms.
Influenza Vaccine in Final Bulk
As a well-known, trustworthy and listed biotechnology company in China, Changchun BCHT Biotechnology Co. ([BCHT") has dedicated to biotechnology for over a decade and grown by leaps and bumps. And we hereby proudly introduce our products as below:
Influenza Vaccine, Live, Nasal, Freeze-dried (exclusively authorized by the WHO in China, for 3-17 years old, no injection and no pain)
The vaccine is inoculated by nasal spray, equipped with nasal spray device, and only needs to spray once a year in two nostrils to prevent influenza.
Mucosal immunity + Cellular immunity + Humoral immunity
Vaccination of Influenza Vaccine, Live, Nasal, Freeze-dried can quickly stimulate the triple immune response of human body, and carry out defense against viruses in different parts:
·Intranasal administration can produce mucosal immunity (IgA antibody), which forms the first immune defense line in the nasal cavity.
·Produce humoral immunity (IgG antibody) to remove influenza virus from body fluids.
·Produce cellular immunity (T cells) to remove influenza virus from cells
Changchun BCHT Biotechnology Co.`s Influenza Vaccines can also be manufactured in final bulk form.
Look forward to your early reply.
Changchun BCHT Biotechnology Co. , https://www.ccbcht.net