As the temperature rises, the nematodes in greenhouses begin to increase gradually, so remind farmers to pay attention to farming operations and reduce the chance of nematode infestation. At the same time, root nematodes should be prevented in time to prevent and control the nematodes. Within the scope. The prevention and control of nematodes should seize the favorable opportunity, and the rational use of drugs should be continuously controlled without interruption. In particular, it does not affect normal flowering and fruiting.
First, master the prevention and control of the root nematode in the initial period.
At present, the temperature is gradually increasing, and the root-knot nematode begins to move and gradually infects the roots of the crops. Therefore, it is necessary to prevent and control the greenhouses with a history of root nematodes. The roots can be rooted with matrine or avermectin plus harvest. The dosage is determined according to the degree of damage caused by nematodes.
Second, the point of application of pesticides and root irrigation prevention.
Before the plant is planted, the application of the hole is an economical and effective method for controlling root-worm. The symptom of the occurrence of root nematodes in the old shed of the tomato is that the plant grows slowly, can't hold the flower, can't sit on the fruit or sit after the fruit. The prevention and treatment method is to prevent the use of acupoint application method before planting, and choose matrine with 16 to 18 kg of an acre. 2 or choose avermectin mixed with harvest No. 1 in the nursery period using 1000 times irrigation roots, each hole 100 ~ 150 grams, after planting slow seedlings with the same concentration of liquid irrigated 150 grams per plant, continuous irrigation roots 3 ~ 4 Times, once every 20 days. 3 kekesu is also a new type of insecticide (Harvest No. 1), without any poison and residue. It can also eliminate phytotoxicity, fertilizer damage and residual poison. The application method is 500 times liquid for root irrigation, and the control effect is very good. At the same time, it can promote new roots and make crops recover quickly. 4 Use Arroyoz, when planting, apply 10 kg of gram per acre, and root the roots with 1500 times after planting. After the occurrence of nematodes in the growing season, roots are irrigated with 1000-1500 times.æ–¤è¯æ¶².
Third, the occurrence of spots, comprehensive prevention.
In order to protect the rootworm, the rootworm must be strict and not leaking. When the wireworm occurs, in addition to the root canal control, it is necessary to apply the line-killing agent in the whole shed, but pay attention to the choice of low-toxic, low-residue or biological pesticides. Such as avermectin, matrine and so on.
(Li Yanqin)
Rural public
First, master the prevention and control of the root nematode in the initial period.
At present, the temperature is gradually increasing, and the root-knot nematode begins to move and gradually infects the roots of the crops. Therefore, it is necessary to prevent and control the greenhouses with a history of root nematodes. The roots can be rooted with matrine or avermectin plus harvest. The dosage is determined according to the degree of damage caused by nematodes.
Second, the point of application of pesticides and root irrigation prevention.
Before the plant is planted, the application of the hole is an economical and effective method for controlling root-worm. The symptom of the occurrence of root nematodes in the old shed of the tomato is that the plant grows slowly, can't hold the flower, can't sit on the fruit or sit after the fruit. The prevention and treatment method is to prevent the use of acupoint application method before planting, and choose matrine with 16 to 18 kg of an acre. 2 or choose avermectin mixed with harvest No. 1 in the nursery period using 1000 times irrigation roots, each hole 100 ~ 150 grams, after planting slow seedlings with the same concentration of liquid irrigated 150 grams per plant, continuous irrigation roots 3 ~ 4 Times, once every 20 days. 3 kekesu is also a new type of insecticide (Harvest No. 1), without any poison and residue. It can also eliminate phytotoxicity, fertilizer damage and residual poison. The application method is 500 times liquid for root irrigation, and the control effect is very good. At the same time, it can promote new roots and make crops recover quickly. 4 Use Arroyoz, when planting, apply 10 kg of gram per acre, and root the roots with 1500 times after planting. After the occurrence of nematodes in the growing season, roots are irrigated with 1000-1500 times.æ–¤è¯æ¶².
Third, the occurrence of spots, comprehensive prevention.
In order to protect the rootworm, the rootworm must be strict and not leaking. When the wireworm occurs, in addition to the root canal control, it is necessary to apply the line-killing agent in the whole shed, but pay attention to the choice of low-toxic, low-residue or biological pesticides. Such as avermectin, matrine and so on.
(Li Yanqin)
Rural public
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