At present, with the gradual decrease in temperature, small pests such as whiteflies, aphids, and leaf miners that frequently occur in vegetable production are gradually transferred to the greenhouses for mass reproduction and damage. Therefore, timely and effective control measures can not only reduce the harm, reduce the number of prevention and control, but also ensure the quality and safety of vegetables.
1. In autumn and winter sheds, insect-proof nets should be installed at the outlet in a timely manner, which can effectively prevent small pests from migrating to the greenhouse and reduce their damage.
2, yellow trap. Using the intense yellowing habits of small pests, yellow plates can be hung on the insects within one week after planting until the end of harvest. Set up every 5-7 meters, and the height should be constantly adjusted along with the growth of the plant. Always maintain 10-20 centimeters above the plant growth point, and pay attention to stick insects and replace them in time.
3, cultivate pest-free strong seedlings. When you raise your seedlings, you do not see green, ie, weeds and stubbles are completely removed from the shed, and the overwintering pests and intermediate hosts are reduced. Separate the seedling house from the production shed, completely eliminate the greenhouse insects before breeding, use 22% dichlorvos smoke agent 400-450 grams per acre, 5 to 6 piles to ignite smoke, killing all adult worms and some larvae.
4, chemical control. Carrying out chemical control is an important emergency measure for preventing and controlling small pests at present.
Liriomyza sativae: The larvae can be killed by spraying 1.8% avermectin EC 3000 times or 75% chlorimidal EC 2000 times.
Whitefly: 10% imidacloprid wettable powder 1500 times solution, or 25% Aktai water dispersible granule 3000 times solution, or 25% buprofezin wettable powder 1000 times solution can be used for spraying. % Buprofezin WP 1500 times and 2.5% Uranus EC 4000 times.
Locust: It is possible to use 5,000 ml of chrysanthemum emulsifiable concentrate 1000 times solution, or 0.6% Qingyuan water retention agent 1200 times, or 10% imidacloprid wettable powder 1500 times solution for spray control.
In the prevention and control, the following points should also be noted:
1, safe and rational use of drugs. It is forbidden to use high-toxicity, high-residue chemical pesticides; use pyrethroids, imidacloprid, buprofezin and avermectins, etc. to improve the control efficiency; focus on the selection of biological pesticides, plant-sourced pesticides; strict implementation of pesticides Safety interval to reduce pesticide pollution, ensure vegetable safety, reduce drug resistance, protect natural enemies, and achieve continuous control of pests. 2. The prevention and control of insect pests occurred at the initial stage of damage. When spraying, it should be uniform and thoughtful, to prevent net insects on the back of the leaves. In order to increase the effectiveness of control and delay the development of resistance, it is recommended to add 1 bag of “Sirun†spreader for every 15 kilograms of liquid medicine.
Equine Chorionic Gonadotropin (acronym given as eCG but not to be confused with ECG) is a gonadotropic hormone produced in the chorion of pregnant mares. Previously referred to as pregnant mare's serum gonadotropin (PMSG), the hormone is commonly used in concert with progestogen to induce ovulation in livestock prior to artificial insemination.
We provide PMSG API both in solution and lyophilized powder. There are different assay, such as 100IU, 1000IU, 2500IU,5000IU, 10000IU, etc.
Pregnant Mare Serum Gonadotropin
Pregnant Mare Serum Gonadotropin,Equine Chorionic Gonadotropin,Equine Gonadotropin API,Serum Gonadotropin For Pregnant Mare
Jiangxi Institute of Biological Products Inc. , https://www.jxinstitute.com