Nematodes are derived from the Greek word meaning thread and are elongated, worm-shaped creatures with tubular bodies that are somewhat spindle-shaped and move like snakes. Nematodes are derived from the Greek word meaning thread and are elongated, worm-shaped creatures with tubular bodies that are somewhat spindle-shaped and move like snakes.
Nematodes are derived from the Greek word meaning thread and are elongated, worm-shaped creatures with tubular bodies that are somewhat spindle-shaped and move like snakes. Nematodes are derived from the Greek word meaning thread and are elongated, worm-shaped creatures with tubular bodies that are somewhat spindle-shaped and move like snakes.
How nematodes work and spread:
Nematodes start to work in suitable humidity conditions or the flow of water and other factors move in the pores of the soil in search of the root of the plant and by finding the root of the host plant, it attacks it and disrupts its functions. The physiology of the plant and eventually the disease of the plant. The causative agent of the disease is spread by irrigation water, human soil, animals, infected seedlings and their movement and causes garden contamination.
Symptoms of disease and damage to the plant:
Signs of contamination appear on the aerial parts of trees, especially foliage. In this part, the leaves first become small and gradually weak and wither, then fall off. In this part, the leaves first become small and gradually weak and wither, then fall off. The tops of the branches become bare and gradually dry out, resulting in the tree crown taking on an unusual shape. The leaves, especially in the branches of the tree, are pale and change color from gray to yellow, and generally cause general weakness, small leaves and fruit shrinkage of infected trees and change their quantity and quality, and finally fruit drop. Infected trees show strong and good growth in spring, but gradually decay.
How to detect infection and fight it:
How to diagnose the infection is possible by controlling the roots and observing the symptoms on the sub-root along with the visible signs.
Fight against nematode disease:
- Identification of infected gardens: It is essential to identify infected gardens by testing the soil and controlling the roots and observing nematodes on it.
- Disinfection of infected seedlings: Disinfection of infected seedlings before planting is effective by placing the roots in water at 45 ° C for 25 minutes and most of the nematodes are killed.
- Observance of horticultural principles: Sometimes simple precautions can prevent severe nematode damage. Drying the soil before planting in hot and dry climates is effective in controlling nematodes or high soil moisture prevents the release of oxygen in the soil and reduces the growth potential of nematodes. One of the effective methods in field operations to control nematodes is soil remediation by adding organic matter to the soil.
- Preparation of healthy seedlings: Healthy seedlings can be obtained by creating and constructing nurseries and nurseries in healthy, pristine or disinfected lands.
- Use of resistant cultivars and rootstocks when planting: In addition to all measures, agricultural hygiene must be observed, including: Cleaning agricultural machinery and tools from soil and mud, controlling the irrigation route and enclosing the garden.
- Nematode control is also possible by other living organisms such as nematode eaters (nematode predators) and species of fungi, and today this type of control is a priority.
- Use of nematodes
