Diseases of fruit plantation medicinal and aromatic crops (2+1)

Nematode disease

Causal organism: Meloidogyne incognita
Symptoms

• Root-knot disease symptoms caused by Meloidogyne incognita and Meloidogyne javanica are most common.
• The infected plants show growth reduction, yellowing and abnormal thickening of leaves with necrosis symptoms on the tip and margins of leaf that extends inwards.
• The disease causes reduction in quality and quantity of leaves. Serious wilt disease sometime greatly affects the growth of plants and produce causing heavy losses to the farmers.
• Because of the heavy losses due to root knot disease it requires chemical method of control.
Management

• Soil sterilization with 4% formaldehyde .Cultivate the crop in nematode free soil.
• Application of neem cake or oil cakes will reduce the nematode infestation.
• Application of Carbofuran (1.5 kg/ ha) in the soil