Biological insecticides and fungicides suitable for flowers

In flower production, the use of biological pesticides to control diseases and insect pests is safe and environmentally friendly, which is very popular with flower farmers in the market. Here are several commonly used insecticides and fungicides. Nicotine is commonly used in 10% nicotine EC, which is widely used to control shell insects, red spiders, aphids, whitefly and other pests in a variety of flowers and plants. Nicotine EC on the market is prepared with diosgenin, and the dosage forms are soluble powder and water agent, etc. Generally, the amount of seedling land used per mu is 50 to 75 milliliters and sprayed with 50 to 75 kilograms of water. Nicotinic acid is a broad-spectrum botanical insecticide of nicotine, berberine and azadirachtin, which is resistant to Rain Water scouring. It is especially suitable for controlling many kinds of pests such as Lepidoptera, Diptera, Homoptera and so on. Such as aphids, scale insects, red spiders, bridge insects, inchworm and so on. Bitter alkali is widely used in the control of leaf roll moth, leaf miner, camphor leaf borer, dance poison moth, leafhopper and whitefly, and has a good regulatory effect on plant growth. 0.36% picric acid and alkali are generally sprayed with 800 to 1000 times the concentration of liquid. Beauveria bassiana is a fungal insecticide, which is produced by fermentation of entomopathogenic bacteria Beauveria bassiana or Beauveria bassiana. At present, it has been widely used in the control of Dendrolimus punctatus and Gypsy moth. 95% turpentine essential oil is a kind of essential oil obtained from the stems, branches and leaves of pine trees by extraction and fractionation, and its main components are terpene alcohols, terpenes, ethers, ketones, phenols and other mixtures. The main effect on pests is fumigation, egg killing, inhibition of growth and development, mainly used for the control of borer pests, such as spruce bark beetles and so on. Yiziling is a low-toxic biological fungicide with wide germicidal spectrum, resistance to Rain Water erosion and antiseptic and fresh-keeping effect. The dosage form of the agent is 4% aqueous agent. It can control powdery mildew, black spot, anthracnose, ring streak, leaf spot, root rot and so on. Spray method is used in prevention and treatment. Spray 1200 to 1500 times solution every 7 to 10 days for 2 to 3 times, such as seed soaking or root irrigation. The commodity name of Tricot is carbendazim, which is a low-toxic fungicide and a yellow-brown powder. It is a pure biological preparation in vivo. It has bactericidal effect, hyperparasitism, bacteriolysis, toxic protein and competition, etc. Due to the complex sterilization mechanism, it is difficult for harmful bacteria to form resistance. This agent has a general antagonistic effect on pathogenic bacteria, so it can control Botrytis cinerea, leaf mold, root rot, blight, quenching disease, white silk disease, blight and so on. It can be mixed with seeds, irrigated roots and sprayed. It can not be mixed with alkaline or acidic pesticides, let alone with fungicides. Genfute, also known as root rot 110, is a low-toxic fungicide. This product can effectively control fungal and bacterial diseases such as root rot, stem rot, Phytophthora and downy mildew of many kinds of flowers, and can activate roots, strengthen roots, resist premature senescence, promote the development of weak seedlings and revive aging roots. The methods of use are seed soaking, root irrigation, spray and so on. If the root is irrigated, it can be diluted 600times with 2.5% water agent during the plant growth period, 200ml to 300ml per plant; for spray, it can be diluted 800ml to 1000 times. This product should not be mixed with alkaline pesticides. The enemy of continuous cropping is a low-toxic biological preparation, which is a kind of bioactive bacteria, and the commodity is black powder. In addition to preventing diseases, this agent also has the functions of activating soil, improving soil, cultivating soil, preventing soil salinization, replenishing trace elements and improving fertilizer utilization efficiency. It can control a variety of diseases, such as blight, anthracnose, rust, powdery mildew, brown spot, downy mildew and so on. Acupoint application, strip application and ditch application can be applied. This agent should not be mixed with chemical fungicides.