Pollution-free prevention and control method for bradysia odoriphaga Yang et Zhang
A technology for leek maggots and larvae, which is applied in the fields of botanical equipment and methods, horticulture, bulb cultivation, etc., can solve problems such as outstanding quality and safety problems, unsatisfactory control effects, and threats to physical health, etc., so as to improve the quality of leeks and not poison humans and animals. , the effect of low cost
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Embodiment 1
[0016] A pollution-free control method for chive maggots, comprising the following steps:
[0017] The first step, after the leeks are harvested, set up an arch on the ground, choose a sunny day to cover with a transparent and heat-preserving non-drip film, increase the soil temperature under the film, keep the soil temperature above 40°C, and last for more than 3 hours, and kill the eggs of leek maggots , larvae, pupae and adults;
[0018] The second step is to remove the film to reduce the soil temperature, water the seedlings slowly, and apply 2000kg / mu of biogas slurry with water; if the biogas slurry is less than 2000kg / mu, the biogas slurry will be irrigated along the direction of furrow or ridge to make the biogas slurry infiltrate the soil depth 10-15cm, kill the chive maggot larvae in the soil;
[0019] In the third step, the first generation of larvae hatched into the period of damage in mid-April, and found that leek maggots were harmful, and applied 1.1% matrine p...
Embodiment 2
[0024] A pollution-free control method for chive maggots, comprising the following steps:
[0025] The first step, after the leeks are harvested, set up an arch on the ground, choose a sunny day to cover with a transparent and heat-preserving non-drip film, increase the soil temperature under the film, keep the soil temperature above 40°C, and last for more than 3 hours, and kill the eggs of leek maggots , larvae, pupae and adults;
[0026] The second step is to remove the film to lower the soil temperature, water the seedlings slowly, and apply 2500kg / mu of biogas slurry with water; if the biogas slurry is less than 2000kg / mu, the biogas slurry should be irrigated along the furrow or ridge to make the biogas slurry infiltrate the soil depth 15-20cm, kill the chive maggot larvae in the soil;
[0027] In the third step, the first generation of larvae hatched into the period of damage in mid-April, and found that leek maggots were harmful, and applied 1.1% matrine powder diluti...
Embodiment 3
[0032] A pollution-free control method for chive maggots, comprising the following steps:
[0033] The first step, after the leeks are harvested, set up an arch on the ground, choose a sunny day to cover with a transparent and heat-preserving non-drip film, increase the soil temperature under the film, keep the soil temperature above 40°C, and last for more than 3 hours, and kill the eggs of leek maggots , larvae, pupae and adults;
[0034] The second step is to remove the film to reduce the soil temperature, water the seedlings slowly, and apply 2400kg / mu of biogas slurry with water; if the biogas slurry is less than 2000kg / mu, the biogas slurry should be irrigated along the furrow or ridge to make the biogas slurry infiltrate the soil depth 10-20cm, kill the chive maggot larvae in the soil;
[0035] The 3rd step, the first generation of larva hatches and enters the period of causing damage in mid-April, uses 1.1% matrine powder dilution to irrigate the roots, and its weight...
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