Control method for preventing leaf vegetables against root-knot nematode

Abstract

The invention discloses a control method for preventing leaf vegetables against root-knot nematode. The method comprises the following steps: dividing to-be-processed land into a land parcel without root-knot nematode, land parcels at moderately severe degree and incredibly serve degree of root-knot nematode and a land parcel with serious root-knot nematode according to damage degree of root-knot nematode; taking a preventative mode to the land parcel without root-knot nematode and controlling an infection source and cutting off a transmission mode to prevent occurrence of root-knot nematode; locally changing soil and simmering saw dust as for the land parcels at moderately severe degree and incredibly serve degree of root-knot nematode and preventing root-knot nematode in combination with small vegetable beds or ridging planting, drip irrigation, intercropping and interplanting techniques to reduce density of population; and closing a greenhouse as for the land parcel with serious root-knot nematode and preventing root-knot nematode in combination with biological bacterial fertilizers, small vegetable beds or ridging planting, drip irrigation, intercropping, different crop rotation techniques. The control method for preventing leaf vegetables against root-knot nematode is simple and practicable and low in cost so that non-pollution prevention and control over root-knot nematode for leaf vegetables is effectively achieved.

Description

technical field

[0001] The invention relates to the technical field of disease and insect pest control, in particular to a method for preventing and treating root-knot nematode disease of protected leaf vegetables. Background technique

[0002] Root-knot nematode disease is an important disease of crops in my country. There are more than 2,000 kinds of crops affected, especially harmful to various leafy vegetables. root-knot nematode, peanut root-knot nematode and other nematodes. The life cycle of root-knot nematodes goes through three stages: eggs, larvae, and adults. The second-instar larvae are the only effective age for root-knot nematodes to infect and harm plants. The second-instar larvae invade from the root tips of plants and develop into Adults, male adults return to the soil, female adults lay eggs and reproduce offspring, and most root-knot nematodes only carry out parthenogenesis. Root-knot nematodes survive harsh environments as eggs or 2nd instar larvae in oo...

Examples

Embodiment 1

[0070] An experiment was carried out in a simple greenhouse in Hanting District, Shouguang City. The greenhouse was 10 years old. Vegetable farmers have been growing celery in a conventional way, and root-knot nematodes were serious in the greenhouse. The phenomenon of internal dead trees is very serious. There are also root-knot nematodes on some purslane, amaranth and other weeds. The investigation found that there are about 10 root-knot nematodes per plant in celery, and the yield per mu is about 5,500 jin. Vegetable farmers have never done stuffy shed treatment , In view of this, we first adopted the method of the present invention to carry out the shed processing. Then divide the shed area into 6 parts, each 0.5 mu, and mark them as test field 1, test field 2, test field 3, test field 4, test field 5 and test field 6 in sequence, and plant 3 consecutive crops.

[0071] 1. The first crop: Chinese celery, which is root-knot nematode susceptible.

[0072] On August 20, 2014...

technical field

[0001] The invention relates to the technical field of disease and insect pest control, in particular to a method for preventing and treating root-knot nematode disease of protected leaf vegetables. Background technique

[0002] Root-knot nematode disease is an important disease of crops in my country. There are more than 2,000 kinds of crops affected, especially harmful to various leafy vegetables. root-knot nematode, peanut root-knot nematode and other nematodes. The life cycle of root-knot nematodes goes through three stages: eggs, larvae, and adults. The second-instar larvae are the only effective age for root-knot nematodes to infect and harm plants. The second-instar larvae invade from the root tips of plants and develop into Adults, male adults return to the soil, female adults lay eggs and reproduce offspring, and most root-knot nematodes only carry out parthenogenesis. Root-knot nematodes survive harsh environments as eggs or 2nd instar larvae in oo...

Examples

Embodiment 1

[0070] An experiment was carried out in a simple greenhouse in Hanting District, Shouguang City. The greenhouse was 10 years old. Vegetable farmers have been growing celery in a conventional way, and root-knot nematodes were serious in the greenhouse. The phenomenon of internal dead trees is very serious. There are also root-knot nematodes on some purslane, amaranth and other weeds. The investigation found that there are about 10 root-knot nematodes per plant in celery, and the yield per mu is about 5,500 jin. Vegetable farmers have never done stuffy shed treatment , In view of this, we first adopted the method of the present invention to carry out the shed processing. Then divide the shed area into 6 parts, each 0.5 mu, and mark them as test field 1, test field 2, test field 3, test field 4, test field 5 and test field 6 in sequence, and plant 3 consecutive crops.

[0071] 1. The first crop: Chinese celery, which is root-knot nematode susceptible.

[0072] On August 20, 2014...

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