pyrethrin Learn more about pyrethrin
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The most famous insecticidal plant pyrethrum & # 8221
Pyrethrum is a perennial herb of Compositae, with the elegance, freshness and chic of Compositae. However, such a beautiful plant is the deadly nemesis of mosquitoes and other pests. It turns out that pyrethrum contains pyrethrin and cinnamon. Pyrethrin, also known as pyrethroid, is a colorless, sticky oily liquid.
2019-04-18 -
Large inventory of mosquito repellent plants
Large inventory of mosquito repellent plants
2019-03-02 -
Don't you know what plants are used to ward off mosquitoes?
Don't you know what plants are used to ward off mosquitoes?
2019-02-25 -
8 tips to control vegetable aphids, aphids have nowhere to escape!
Uncle Sun has five vegetable greenhouses in his home, mainly planting lettuce. These days, two of the greenhouses were found to have "uninvited guests", namely aphids. He said,"I don't know.
2019-02-27 -
The efficacy of permethrin
Permethrin is a kind of insecticide with moderate toxicity to humans and animals and high toxicity to fish, so what is the effect of permethrin? How is permethrin prepared? First, the basic introduction of Lianben pyrethrin pure product is white solid, soluble in C.
2020-11-08 Lianben chrysanthemum efficacy lianben yes yes. -
Pest control techniques of Phalaenopsis
Disease: Phalaenopsis is native to trees in the tropical rain forest. it not only grows vigorously, but also rarely infects diseases, and the most important disease is blight, which is caused by a fungus that invades the tissue of the plant leaves and divides and propagates in the tissue, destroying the cells of the tissue, and the rate of division and reproduction of this fungus is so amazing that it is enough to destroy a robust plant in a short period of 24 hours. The fungi that can infect Phalaenopsis plants are ⑴ PhytophthoraPalmivora ⑵ Phytoph.
2019-01-16 -
What are the plants that can repel mosquitoes in summer? Quickly take a look at these 9 kinds of mosquito repellent plant potted plants, summer is not afraid of mosquitoes!
As soon as summer comes, mosquitoes are infested, and the season of frequent activities not only disturbs people's dreams, but also gets bitten and covered with bags. Hanging mosquito nets is troublesome, and ordering mosquito-repellent incense or insect repellent is too harmful to the respiratory tract. What are the plants that can ward off mosquitoes? 1. Mosquito repellent grass repellent
2020-11-11 Summer yes mosquito repellent plants which hurry up look -
Technical specification for field production of pollution-free king
Technical specification for field production of pollution-free king
2018-06-28 -
Keep a pot of this kind of flower, mosquito, mouse and ant at home.
Recently, the weather temperature is suitable in most parts of the country. Florists in the north may feel a little cold, while florists in the south may still be relatively hot. On the whole, they still feel more comfortable. Some time ago, Hua Hua inspected the plants and found a lot of scale insects.
2018-07-15 -
Production technology of Wugong Bupleurum
Bupleurum: Bupleurum is the root of Bupleurum chinense DC (Umbelliferae). It tastes bitter, pungent and slightly cold. Return to the liver and gallbladder meridians. It has the functions of evacuating and relieving fever, soothing the liver and relieving depression, rising yang and lifting depression. It is mainly used for cold and fever, cold and heat, chest pain and menstruation.
2020-11-08 Wugong Bupleurum production Technology for Umbrella Family Plant -
The use of cypermethrin
Cypermethrin, also known as cypermethrin valerate, is an agricultural insecticide, which mainly controls Lepidoptera pests on crops and has strong toxicity. The appearance of the original drug is white to cream-colored crystal, easily soluble in aromatics, ketones and alcohols. The following is mainly about recording cyanide chrysanthemum.
2020-11-08 Cyanoic acid permethrin pyrethroid pyrethrin valeric acid -
Pyrethrum insecticide
Pyrethrum insecticide
2018-05-05 -
Three types of Biopesticide
Three types of Biopesticide
2018-08-09 -
What methods are there to control wheat trematodes?
What method does wheat trematode have to control? Please guide the prevention and control of wheat midge by referring to the following methods: 1. Chemical control: the best control period is the pupa stage, generally using 50% phoxim EC or 40% methyl isophos EC 200kg 250ml plus 5 kg water to spray 25 kg fine soil per mu, or 3% phoxim per mu.
2018-09-09 -
Prevention and treatment of pigeon parasites: soft tick disease
Parasitic diseases do great harm to the production of pigeons, especially affect the normal laying of pigeons, increase the number of azoospermic eggs, consume nutrients to make pigeons thin, reduce the physique of pigeons, and cause other diseases. Therefore, pigeon parasitic diseases must be prevented and treated in production. It is a pigeon disease caused by ticks or ticks. After being attacked by a large number of ticks, young pigeons can cause serious blood loss and even death; suffering from pigeons itching restless, gradually emaciated and anemic, growth and development hindered. As ticks are often parasitized in pigeon nests and faeces where pigeons often stay, faeces should be cleaned in time.
2019-01-16 -
Small measures for Prevention and Control of Pear pests
Big heart eater. There are 2-3 generations a year, and there is a habit of turning buds and fruits. At this time, the pear heart borer is in the dead flower, and when the young fruit develops to the size of the thumb, it is transferred to harm the young fruit, and one larva can harm 1-4 young fruit. therefore, it is necessary to use 40% good labor and other internal absorption insecticides to control. Pear snacks.
2018-09-15 -
Common diseases and insect pests in strawberry planting and their control methods
Pest control is a common problem in strawberry cultivation. What are the common diseases and insect pests in strawberry? What methods and pesticides can control these diseases and insect pests?
2019-02-28 -
Eight common problems affecting the appearance quality of bagged emerald pear and their solutions
Emerald is a new pear variety bred by Zhengzhou Fruit Tree Research Institute. It is a hybrid between the new century and Zaocu. In the past six years of bagging cultivation through high grafting head in 2000, it has been found that this variety is an early-maturing pear variety with good quality because of its positive fruit shape, smooth fruit surface, milky white pulp, crisp, juicy and few stone cells. However, in the production of bagged pears, it is often found that there are some abnormal phenomena affecting the appearance and quality of fruit, such as black wrinkle, fruit peel, tiger skin, green fruit face, black spots, cracks, deformities and so on. For this reason, we have carried out investigation and analysis, and put forward a solution.
2019-01-16 -
Symptoms and control of insect pests in Myrica rubra
May and June are the mature harvest season of red bayberry. Timely harvesting of red bayberry and timely storage and preservation is an important link to improve economic benefits. The following introduces the harvesting and storage technology of red bayberry: determine the appropriate harvest time of red bayberry. The maturity period of red bayberry varies according to origin and variety. The earliest maturity is in April.
2018-07-24 -
Five methods of controlling vegetable pests
Five methods of controlling vegetable pests
2019-07-19