Planting Technology Lists
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What diseases and insect pests should be prevented from growing rich trees?
What diseases and insect pests should be prevented from growing rich trees? Please give an introduction to the prevention and control methods. The following two common disease prevention and control methods for raising rich trees are for reference: First, root (stem) rot This is a common disease that seriously harms rich trees, also known as rot. Control methods: (1) keep the cultivation environment dry, pay attention to planting...
2018-09-08 -
How to prevent and cure root rot and leaf blight of rich trees?
How to prevent and cure root rot and leaf blight of rich trees? Please introduce the symptoms of root (stem) rot of the rich tree: dark brown from stem base to root, rot, young leaves lose vitality and wither. Prevention and control methods: (1) timely ventilation to keep the cultivation environment dry. (2) pay attention to the disinfection of cultivation substrate and flowerpot. (3) move.
2018-09-08 -
Which herbicides can be used to control weeds in growing tobacco?
Which herbicides can be used to control weeds in growing tobacco? Please introduce that the seeds of tobacco are small, the seedlings grow slowly, and they are often damaged by weeds. The main weeds are: Setaria mandshurica, Artemisia angustifolia, paspalum barnypalum, sophora officinalis, sedge, pig calamity, plantain, dandelion and so on. The prevention of weeds in tobacco fields.
2018-09-08 -
What pesticides can be used in tobacco leaves?
What pesticides can be used in tobacco leaves? Please introduce the main pesticides commonly used in tobacco are dimethoate, omethoate, aldicarb, aldicarb, endosulfan, carbaryl, trichlorfon, S-fenvalerate and cyhalothrin.
2018-09-08 -
How to use pesticides in growing tobacco?
How to use pesticides in growing tobacco? Please introduce the methods of growing tobacco and using pesticides can refer to the following methods: 1. Adhere to the principle of "unity". First, unified pesticide management, that is, by the province (bureau) company unified tobacco pesticide safety, effect, price and other factors to form a recommendation, by the state.
2018-09-08 -
What are the symptoms of tobacco pesticide damage?
What are the symptoms of tobacco pesticide damage? Please introduce the symptoms of tobacco pesticide damage such as yellowing of leaves, severe leaf spots, wilting, burns, dwarfing, slow growth, deformities and even wilt or death of tobacco plants. The occurrence of such symptoms is called drug damage. The crops affected by drug damage can be divided into acute drug damage and slow drug damage according to different symptoms.
2018-09-08 -
Which pesticides are prohibited in tobacco leaves?
Which pesticides are prohibited in tobacco leaves? Please introduce 44 kinds of pesticides prohibited in tobacco in the 2001 Pesticide notice issued by the State Tobacco Monopoly Bureau: BHC, lindane, dichlordane, chlordimeform, ethyl acaryl alcohol, DDT, DDT, 2pyrin, Taoxiaoling, benzenesulfide.
2018-09-08 -
How to make Phalaenopsis blossom more?
How to make Phalaenopsis blossom more? Please introduce the methods to make Phalaenopsis bloom more can refer to the following methods: 1. Phalaenopsis flower bud differentiation should have a certain annual accumulated temperature, but also a short period of low temperature treatment. Low temperature treatment usually begins 110-140 days before flowering, and the light intensity should be gradually increased one month before treatment.
2018-09-08 -
The method of orchid culture?
The method of orchid culture? Please introduce the methods of orchid culture. You can refer to the following points: lighting. Orchids are semi-shady plants, love the sun, but do not expose themselves to the sun. Semi-overcast is the most appropriate, that is, it requires a shading rate of 50% to 70%. Generally, the shading rate is higher in summer and should be increased appropriately in winter and spring.
2018-09-08 -
What's the effect of avermectin?
What's the effect of avermectin? Which pests does avermectin have effect on? Please introduce that avermectin has stomach toxicity and contact killing effect on mites and insects, but can not kill eggs. The mechanism of action is different from that of general insecticides in that it interferes with neurophysiological activities and stimulates the release of GABA, which affects arthropods.
2018-09-08