Hazard: Conifer seedlings and some hardwood seedlings
Symptoms: There are four types: 1 type of bud rot. 2 tripping type. 3 shoot rot, top rot type. 4 litter (root rot) type.
Cause: Caused by fungi in Fusarium, Rhizoctonia, and rot fungi.
Occurrence characteristics: 1 The old nursery garden is easy to develop. Continuous crops are vulnerable to disease. 2 easy to attack at low temperature. 3 The former crop land is vulnerable to disease. 4 The application of nitrogen fertilizer is too easy to cause disease. 5 In the rain, farming and sowing are vulnerable to disease.
Control: 1, selected nursery. 2, refined seedbed. 3, seed disinfection: Suhua 911 or West Lisheng seed dressing. The dosage is 0.3% of the seed. 4, soil disinfection: per acre with 30 ~ 45 kg of ferrous sulfate soil. 5. During the onset of illness, use 0.5% Saili powder to spray, or use Suhua 911 to cover soil, and use 2 to 2.5 kg per acre for spreading.
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