Integrated control of pests and diseases in major crops during the summer
During the summer, crop diseases and insect pests during the summer have mainly one generation of corn borer, second generation of cotton bollworm, two-pointed caterpillar, cotton red spider, caterpillar, corn thrips, blind borer, second generation armyworm, corn seedling blight, corn rough dwarf disease , cotton wilt disease and so on. Occurrence characteristics: Two-pointed Amorphophalla is a new and important pest that harms corn. It has strong reproduction ability, heavy damage loss and difficulty in control. The main rhizomes of the corn seedlings are cut or cut off from the superficial roots, resulting in lodging or death of the corn, resulting in the lack of seedlings and ridges, which can cause destructive seeding. If the control is not good, it will seriously affect the corn yield. Megagermium is also a pest that has been aggravated year by year in recent years. When it is harmful to corn, it causes the plants to be short, thin, and leaves yellow, showing symptoms of water shortage at noon and the leaves rolling. Where garlic pods and other crops sow corn earlier plots, we should attach great importance to the prevention and control of corn rough disease. Prevention and control measures: prevention and control of a generation of corn borer, caterpillar, second-generation armyworm, blind beetle, etc. sprayed with 2.5% kungfu 1500 times, corn thrips and Laodelphax striatellus with 10% imidacloprid or 3% acetamiprid 1000 times spray control; Two point Amorphophalla moths, wheat straw promptly cleaned up, and the use of pyrethroids, A-dimensional salt, chlorpyrifos, chlorbenzuron and other agents alone or two kinds of mixed with ridge spray base or irrigation roots. The control of wheat root can be used 40% phoxim 500 - 1000 times pouring. Stereo Microscope Stereo Microscope,Stereo Zoom Microscope,Zoom Binocular Microscope,Stereo Binocular Zoom Microscope NINGBO VANCO INSTRUMENT CO.,LTD , https://www.vancoscope.com