1. The larvae fold the leaves, eat out the green tissue and produce white streaks.

2. The damage is highest during August-October. Spray the crop when the leaf damage reaches 10 per cent (ETL) with 350 ml of Hostathion 40 EC (triazophos) or 1 litre of Coroban/ Durmet/ Force 20 EC (chlorpyriphos) or 560 ml of Monocil 36 SL (monocrotophos) in 100 litres of water per acre.

1. Grasshoppers can damage rice at all stages of crop growth.

2. Both nymphs and adults feed on leaves by cutting the edges of leaves at all the growth stages of the rice crop.

3. Damage is found more on the margins of the field.

4. They sometimes cut the plants similar to cut worms.

5. When the grasshoppers are in greater numbers they can even feed on the midribs and total leaves and cause extensive defoliation.

1. Grasshoppers can damage rice at all stages of crop growth.

2. Both nymphs and adults feed on leaves by cutting the edges of leaves at all the growth stages of the rice crop.

3. Damage is found more on the margins of the field.

4. They sometimes cut the plants similar to cut worms.

5. When the grasshoppers are in greater numbers they can even feed on the midribs and total leaves and cause extensive defoliation.

1. The larvae of this insect are gregarious in habit and are commonly known as ‘armyworm’. The young larvae feed on leaves, leaving only the mid-ribs and stems.

2. The old larvae cut off the panicles mostly at the base and hence the name “rice ear cutting caterpillar”. This stage of the insect causes serious loss to the paddy crop.

3. The larvae are shy of sunlight and generally feed at night. The damage to paddy crop is caused mostly during September to November.

1. This weevil is a localized pest in the rice area around Rajpura. However, this pest has also been observed in some other areas in the State.

2. Its white, legless grubs feed on roots in the soil from July to September. The attacked plants turn yellow, stunted and produce only a few tillers.

3. Apply one of the following granular insecticides in the standing water:- 3 kg of Thimet/Foratox 10G (phorate) per acre.

1. Rice hispa a serious pest in some areas of the Gurdaspur and Amritsar districts and is also found in the other rice growing areas of the state.

2. The grubs of this pest tunnel in to the leaves, whereas the adults are exposed feeders. The grubs cause damage by producing bold, white streaks on the leaves.

1. The larvae of these insects bore into the stem and cause damage from July to October.

2. The affected young plants show dead-hearts (yellowing and drying of central shoot) whereas the old ones produce empty earheads which turn white and stand erect.

Important insect pests of punjab state are

1. Rice stemborer .

2. Leaf Folder.

3. Plant hoppers.

4. Grasshoppers.

5. Rice Hispa.

6. Rice root weevil.

7. Rice-ear-cutting-caterpillar

Important insect pests of punjab state are

1. Rice stemborer
2. Leaf Folder
3. Plant hoppers
4. Grasshoppers
5. Rice Hispa
6. Rice root weevil
7. Rice-ear-cutting-caterpillar

1. Only a few grains in the panicle are infected. Frequently, only a part of the grain is replaced by a black powder.

2. Sometimes, entire grain is also attacked and the black powder scatters on to other grains or leaves, and this is often the easiest way to detect the disease in the field.

3. The disease incidence is more on short duration varieties, planted early. Also avoid heavy doses of nitrogenous fertilizers.

4. Two sprays of Tilt 25 EC @ 200 ml in 200 litres of water/acre at 10% flowering stage and 10 days after should be given for controlling the disease.