Damage Symptoms:

Yellowing and Wilting: Leaves turn yellow and may wilt due to nutrient loss from sap feeding. 

Curling: Leaves may curl upwards or downwards, especially at the margins. 

Stunted Growth: Jassid feeding can lead to reduced plant growth and vigour. 

Hopper Burn: Severe infestations can cause leaves to dry out and die, a condition known as "hopper burn". 

Leafhopper Damage: The characteristic symptom of leafhopper damage is a "hopper burn" where leaves turn dry, brown, and may appear scorched. 

Whitening of Veins: The underside of leaves may show whitening of the veins due to sap extraction. 

V-shaped Yellowing: In severe cases, the tips of leaflets may turn yellow in a V-shape. 

Target Crops:

Cotton: Jassids are a major pest of cotton, causing leaf damage and stunting growth. 

Okra: Jassids can negatively impact okra plants, leading to stunted growth and reduced yields. 

Brinjal (Eggplant): Jassids can cause yellowing, curling, and stunted growth in brinjal plants. 

Cucumber: Jassids can damage cucumber plants by sucking sap from the leaves, leading to reduced growth and yield. 

Tomato: Jassids can affect tomato plants by feeding on their leaves, causing yellowing and stunted growth. 

Soybean: Jassids can damage soybean plants, leading to leaf yellowing and stunted growth. 

Groundnut: Jassids can also damage groundnut plants, causing symptoms like yellowing, wilting, and stunted growth. 

Sunflower: Jassids can damage sunflowers by causing yellowing, curling, and bronzing of leaves, stippling, wilting, and stunted growth. 

Other Crops: Jassids can also be a problem in other crops like paddy, fruits, and vegetables.