Nematodes are our most headache pests in soil-borne diseases, and they are extremely harmful to agriculture, nearly half of which are related to nematodes, and if they are serious, they will even affect the harvest.
Nematodes are very harmful
We all know that nematodes are easy to confuse with other diseases, if it is for other diseases to be drugged, it will definitely affect the control of nematodes, and the neglect of nematodes and improper coping methods will cause great losses to the agricultural economy.
Part of the harm of plant nematodes to plants is due to the damage of the mouthparts to the roots and leaves of plants, and because of the wound, it can also increase the infection of plants by viruses, making it a "susceptible body" of a variety of plants, on the other hand, the digestive juices and a variety of enzymes secreted by nematodes will also damage the normal metabolic function of plants and affect growth and development.
Symptoms of nematodes are not obvious
Most nematode diseases have no obvious symptoms, and even some are like vegetarian deficiency, which is mainly the weak growth of plants, short and yellow, and the yield is reduced. But if you look closely, you can actually see it, because the activity ability of nematodes is wired, if not human intervention, the maximum impact radius of a year is only one meter.
Nematodes not only harm plant roots, but even rhizomes and leaves.
How to control nematodes?
In fact, the harm of nematodes is main
It is very difficult to control in the late stage of the disease, so the first thing is to do prevention, and even if the hand worm eggs are contaminated, agricultural tools may become vectors. If you inadvertently bring the soil, seedlings and agricultural tools infected by the disease to the healthy plant, it will also lead to the rapid spread of the disease.