Prevention of pests and diseases after fruit picking
2019-03-31 10:26:03
First, manual control:
1, dry white, grass, to prevent spawning pests lay eggs. During the prosperous period of the oviparous pests such as P. sinicus, the trunk was coated with a white coating agent (the proportion of lime was 5 kg, sulphur powder 0.5 kg, water 20 kg, and rosin 0.02 kg); The larvae were initially destroyed and the grass was burned.
2. Artificially cut off the insect shoots: The main insect pests such as black spotted longhorned caterpillars are all invaded from the top of the tender shoots. After the pepper picking fruit, the branch shoots that are dead at the top of the tender shoots should be cut as early as 5-10 cm from the dead parts. Burn down.
3. Thoroughly clean litter and reduce the source of pathogen infection.
4. After the prickly ash is defoliated, use a grass-type brush to wipe off the overwintering adults on the branches. Eggs.
Second, chemical control:
1, spray protection of the leaves: pepper is harvested after the peak period of its disease, spraying 70% of the thiophanate-methyl 600-800 times, or 25% Triadimefon 800 times, It can effectively control the spread of Zanthoxylum bungeanum and brown spot.
2, dormant spray lime sulfur mixture: before the defoliation of the peppercorns before germination spray lime sulfur mixture, can effectively kill the trees on the winter pathogens.
1, dry white, grass, to prevent spawning pests lay eggs. During the prosperous period of the oviparous pests such as P. sinicus, the trunk was coated with a white coating agent (the proportion of lime was 5 kg, sulphur powder 0.5 kg, water 20 kg, and rosin 0.02 kg); The larvae were initially destroyed and the grass was burned.
2. Artificially cut off the insect shoots: The main insect pests such as black spotted longhorned caterpillars are all invaded from the top of the tender shoots. After the pepper picking fruit, the branch shoots that are dead at the top of the tender shoots should be cut as early as 5-10 cm from the dead parts. Burn down.
3. Thoroughly clean litter and reduce the source of pathogen infection.
4. After the prickly ash is defoliated, use a grass-type brush to wipe off the overwintering adults on the branches. Eggs.
Second, chemical control:
1, spray protection of the leaves: pepper is harvested after the peak period of its disease, spraying 70% of the thiophanate-methyl 600-800 times, or 25% Triadimefon 800 times, It can effectively control the spread of Zanthoxylum bungeanum and brown spot.
2, dormant spray lime sulfur mixture: before the defoliation of the peppercorns before germination spray lime sulfur mixture, can effectively kill the trees on the winter pathogens.
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