Functions and characteristics of pesticides commonly used in orchid pest control

Sauna days are really uncomfortable, go to "Sangmei" and come to "Wukong" typhoon weather is very hot to Wenzhou area to bring serious disaster flood rushed to houses, washed away fertile farmland, plus 17 typhoon, Sichuan Chongqing serious drought, continuous high temperature, fierce autumn tiger, bad weather.

Orchids are also suffering in sauna days, and various cases will inevitably occur. In the high temperature and humidity environment, it provides good conditions for the growth and reproduction of viruses, germs and pests. Orchids pest control is an important work, in the control work must be done to prevent the main, integrated control, in addition to temperature, humidity, light, air four relations, but also to further understand the role and characteristics of various commonly used pesticides. We will first talk about the pesticide omethoate 40% EC, control objects such as scale insects, broad-spectrum, stomach poison, contact kill. The method of application is spray. Phoxim 50% EC, effective against lepidopteran larvae, and against a variety of pests, the characteristics of action with stomach poison, contact effect. But it's photolytic. The method of application is spray, which should be applied on cloudy days or in the evening. Trichlorfon 90% crystal, control object Lepidoptera larvae, underground pests, etc. The action characteristic high efficiency low toxicity, stomach poison effect strong, uses the method spray. Dichlorvos 50%, 80% EC, control object Lepidoptera larvae, aphids, mites and so on. The action characteristic broad spectrum high efficiency, quick acting, residual effect is short, has the stomach poison to touch kills and fumigates the function. The method of application is spray. Furadan 3% granules. The target is aphids, underground pests, nematodes. Characteristics of action broad-spectrum absorption of pesticides, stomach poison, contact killing effect. Use Method Matrix Treatment. Fenvalerate 20% EC, the target of action lepidopteris larvae, aphids and other pests, broad-spectrum high-efficiency pesticides, strong contact effect. Use method spray. The above are several commonly used pesticides, and then we will talk about fungicides. Benelate 50% WP. Control object anthracnose, white silk disease, leaf spot disease, etc. Characteristics of action: internal absorption sterilization, protection and treatment. Use methods such as spraying, root drenching or substrate treatment. Carbendazim 50% WP. Control object anthracnose, white silk disease, black spot disease, epidemic disease. Gray mold, blight. Characteristics of action broad-spectrum absorption, high efficiency and low toxicity, with preventive and therapeutic effects. Use method spray. Thiophanate-methyl 50%, 70% WP. Control object anthracnose, leaf spot, flower rot, brown spot, etc. Its action characteristic is broad spectrum, and its effect is 1/3--1/2 higher than that of ethyl thiophanate. The method of application is spray. Antivirus alum 64% WP. Control object: Phytophthora, rot disease, leaf spot disease. The action characteristic has the protection, the absorption, the treatment function. The method of application is spray. Shigao 10% WP. Control object anthracnose, leaf spot. Characteristic of action: internal absorption. The method of application is spray. Chlorothalonil 75% WP. Control objects anthracnose, blight, blight, leaf spot, rust. Characteristics of action broad-spectrum protective fungicide, with treatment and fumigation effect, lasting longer. The method of application is spray. Iprohydantoin 50% WP. Control objects Phytophthora blight, Rhizoctonia solani, Sclerotium rolfsii, Gray mold, Fusarium wilt. Characteristics of action broad-spectrum contact fungicide, method of use for spray. Zineb 80% WP. Control objects Anthracnose, blight, leaf spot, etc. Characteristics of action Broad-spectrum protective fungicide, method of use for spray. Yekuling 25% WP. Control object anthracnose, leaf spot. The action characteristic has the protection and the absorption function. The method of application is spray. Bordeaux mixture semi-quantitative formula (1: 0.5: 200). Control object a variety of fungal bacterial diseases. Protective germicide, the use of spray, immersion. 77% WP can be obtained. Bacteriosis for control of fungi. Protective fungicides used before or during the onset of disease. The method of application is spray. Copper complex ammonia 25% aqueous solution. Bacteriosis for control of fungi. Action characteristics broad-spectrum fungicide, containing a variety of trace elements. Method of use Spray or drench roots. Agricultural antibiotic 120 2% aqueous solution. Control objects are a variety of pathogens. Function characteristics broad-spectrum sterilization, antibacterial. The method of application is spray. Agricultural streptomycin 15%-20% powder. It can prevent and cure many kinds of bacterial diseases. It has the characteristics of broad-spectrum sterilization and can penetrate into plants for conduction. The method of application is spray. Garinone 50% WP. Control objects Phytophthora blight, leaf spot, downy mildew and other fungal diseases and bacterial soft rot. Characteristics of action broad-spectrum, internal absorption antibacterial. The method of application is spray.