What are the control methods for corn brown spot?
How do you control corn brown spot? Please advise. Corn brown spot can be controlled as follows: (1) Rational fertilization. Apply sufficient base fertilizer, pay attention to the balance of nitrogen, phosphorus and potassium fertilizers, and avoid over-applying nitrogen fertilizer, so as to enhance the disease resistance of the plants. (2) Early prevention. Hybrids with Huangzaosi bloodline are susceptible to brown spot. At the 5-6 leaf stage...
How do you control corn brown spot? Please advise.
Corn brown spot can be controlled as follows:
(1) Rational fertilization. Apply sufficient base fertilizer, pay attention to the balance of nitrogen, phosphorus and potassium fertilizers, and avoid over-applying nitrogen fertilizer, so as to enhance the disease resistance of the plants.
(2) Early prevention. Hybrids with Huangzaosi bloodline are susceptible to brown spot. At the 5-6 leaf stage, spray with 25% triadimefon wettable powder at 1,500 times dilution.
(3) Chemical control. At the trumpet stage, spray 25% triadimefon wettable powder at 1,500 times dilution, or 12.5% hexaconazole wettable powder at 1,000 times dilution, or 50% carbendazim wettable powder at 500-800 times dilution. To improve the control effect, potassium dihydrogen phosphate can be added to the spray solution to promote vigorous corn growth and improve disease resistance.
Click to get more corn cultivation techniques
Click to get more grain crop cultivation techniques