Control methods of peanut root rot

Peanut root rot disease should first of all take care of the seeds, select suitable seeds without mildew, carry out reasonable rotation, appropriate amount of drainage and irrigation; usually apply sufficient base fertilizer to prevent and control the disease in time.

Control methods of peanut root rot

1. Turn off the seeds. Do a good job in harvesting, selecting, drying and hiding seeds; turn and dry seeds before sowing, remove discolored, moldy and damaged seeds, and mix seeds with 40% carbendazim wettable powder with 0.3% seed weight.

two。 Reasonable rotation. The mildly diseased field rotates every other year, while the seriously diseased field rotates for 3-5 years. It can rotate with wheat, corn and other Gramineae crops, and avoid interplanting with soybeans and sweet potatoes.

3. Timely drainage and irrigation. It is strictly forbidden to irrigate heavily during full bloom, before rain or after a long drought. No shallow irrigation in the afternoon to avoid scalding the roots of peanuts. The field drainage should be done in time after the heavy rain.

4. Apply sufficient base fertilizer. Increase the application of phosphorus and potassium fertilizer, the application of barnyard manure should be fully mature.

5. Remove the diseased plant. The diseased plants found in the field should be pulled out immediately and burned centrally, and the disinfection and sterilization of the diseased plant holes should be carried out to prevent the spread of bacteria. The plants and diseased bodies in the field were removed in time after peanut harvest.

6. Timely prevention and control of disease. After the seedlings were collected, the diseased plants were immediately blocked by spraying or sprinkling irrigation. 1000 times of allicin combined with foliar fertilizer was used to control the spread of the disease. You can also choose 70% thiophanate methyl 500 times 800 times liquid or 85% trichloroisocyanuric acid soluble powder 1500 times liquid, spray once every 7 to 10 days, and spray irrigation for 2 times 3 times.