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Feeding types of plant-parasitic nematodes. This article is an attempt to list all agricultural pest nematodes. Species are sorted in alphabetical order of Latin name. A
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Root-knot nematode damage results in poor growth, a decline in quality and yield of the crop and reduced resistance to other stresses (e.g. drought, other diseases). A high level of damage can lead to total crop loss. Nematode-damaged roots do not use water and fertilisers as effectively, leading to additional losses for the grower.
Water immersion is another option. Infected plants are immersed in a hot water bath for about 30 minutes, which rids them of nematodes but does not harm the plant. This method has been successful for P. coffeae. [9] Crop rotation can help control the nematode load in the soil because different plants are susceptible to different Pratylenchus ...
Symptoms appear in patches or clusters and plants show a slow and general decline in growth and vigor. Common symptoms of infection are that of other root nematodes; stunted growth of the plant as well as the roots, chlorosis, leaf drop, reduced plant weight or yield, and undersized fruit are all symptoms which may be seen.
Together, the nematodes and bacteria feed on the liquefying host, and reproduce for several generations inside the cadaver maturing through the growth stages of J2-J4 into adults. Steinernematids infective juveniles may become males or females, whereas heterorhabditids develop into self-fertilizing hermaphrodites with later generations ...
Tylenchidae is a family of nematodes. They are an important group of soil dwelling species that frequently contributes as much as 30% to the nematode species richness of soil samples. [2] They diverged relatively early on and many species pose little risk to economically important plant species. [2]
The nematode is found in all temperate regions around the world, because of the wide host range. For normal nematode activity a moisture film is needed for movement of the nematode. Soil moisture, relative humidity, and related environmental factors directly affect nematode survival. Moisture is needed to the nematode to survive and move.