Identification:
- Egg: Jassid eggs are small, elongated, and white or yellowish in color.
- Nymph: Nymphs resemble wingless adults, but are smaller and lack fully developed wings. They typically go through five molting stages as they grow.
- Adult: Adults are the fully mature stage of jassids. They have two pairs of transparent wings, a triangular head, and large prominent eyes.
- Temperature: Jassids thrive in warm and dry conditions. Their development is faster at temperatures between 25-30°C (77-86°F).
- Humidity: Low humidity levels (around 50-60%) are also favorable for jassids. High humidity can increase fungal growth, which can harm jassid populations.
- Whitening of veins: The first sign of jassid infestation is often the whitening of the veins on the underside of young leaves. This is caused by the jassids sucking sap from the veins.
- Yellowing and wilting: As the infestation progresses, the leaves will start to turn yellow and wilt. This is because the jassids are removing essential nutrients from the leaves.
- V-shaped yellowing: In severe cases, the tips of the leaflets will turn yellow in a V-shape. This is a characteristic symptom of jassid damage and is known as hopper burn.
| Products | Technical Names | Dosages |
| Thioxam | Thiamethoxam 25 % wg | 80 gm/acre |
| IMD-70 | Imidacloprid 70 % WG | 2-3gms per 15 ltr water |
| Imd-178 | Imidacloprid 17.8 % SL | 100 -150 ml per acre |
