Summer corn is the main food crop in our county. The middle and late stage of summer maize is a period of vegetative growth and reproductive growth of corn, and it is also a key period for the management of corn pests and diseases. Therefore, pest control cannot be ignored.
I. Agricultural measures
1. Cut off the pathogen of the pathogen and find that the diseased plant should be removed in time. After the corn is harvested, there are plots of the diseased plants. It is necessary to collect the diseased plants, residual leaves, and fruit (ears) in time for concentrated burning and high-temperature manure, and to destroy the intermediate host and wintering place of the pests and diseases. Clean the pastures to deepen and minimize the source of overwintering bacteria.
2. Strengthen field management in the middle and late stages to enhance the disease resistance of corn. The middle and late stages of corn growth are the periods in which energy is accumulated throughout life and the seeds are bred. Field management must be strengthened, and timely fertilizer, watering, cultivating, and soil cultivation can improve the ability of corn to resist pests and diseases.
Second, chemical control
1. Stem-based rot: In the early stage of the disease, the method of rooting or spraying is used for prevention and treatment. The method is “killing bacteria + fungicide + foliar fertilizer (potassium dihydrogen phosphate or spray Shibao, etc.)â€, and the effect is better. Generally used streptomycin + mancozeb (or metalaxyl manganese; or carbendazim) + potassium dihydrogen phosphate, while treating corn brown spot.
2. Brown spot disease: In the 4-5 leaf stage of corn, it can be prevented by using mancozeb leaf spray. Immediately after the onset of corn, the Phytophthora, or Kekeling, or the agent containing cream cyanine is sprayed. In order to improve the control effect, it is possible to add some foliar fertilizer such as potassium dihydrogen phosphate or urea in the liquid medicine to control the spread of the disease, and promote the robustness of the corn and improve the disease resistance of the corn.
3. Myxos: (1) Insecticides can be used with both general contact agents and stomach poisons. The best effects are obtained with pyrethroid pesticides or pyrethroids and organic phosphorus. Commonly used medicaments and dosage per acre are: 25% cyanamide EC 20-30 ml or 5% beta-cypermethrin 40 ml water spray. (2) 2% Awei salt oil diluted 2000-3000 times spray control.
4. Corn 螟 corn trumpet period is the second generation of corn mash hazard. At this time, the aphids are sensitive to drugs at the young age, which is the best time to prevent. The method is to use 5% methyl isosulfur granules to mix coal slag 1:6, each plant 2 grams, sprinkle into the heart leaves, or 1.5% phoxim granules to mix cinder according to 1:15, 1 g per plant. Heart leaf.
This article URL: corn common pest control technology
Sunflower Seeds,Sunflower Kernels,Raw Sunflower Seeds,Bulk Sunflower Seeds
Inner Mongolia Hengxintonghui Supply Chain Management Services Co.,LTD , https://www.hxthfood.com