Leaf miner

When to act: pest threshold levels

Economic threshold levels given for groundnut: leaf miner – 1 larva per metre row; tobacco caterpillar – 8 egg masses per 100 m row.

Source

Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Groundnut – Crop protection, ETL, p. 193

Region

Tamil Nadu

Last updated

2026-11-04

Leafhopper and leafminer: non-chemical measures

For leafhopper, intercrop lablab with groundnut in a 1:4 ratio. For leafminer (leaf webber), set up a light trap at ground level between 8 and 11 pm.

Source

Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Groundnut – Leafhopper & leafminer, p. 194

Region

Tamil Nadu

Last updated

2026-11-04

Chemical insecticides: ask before you spray

The source lists insecticides for red hairy caterpillar, tobacco caterpillar, leafhopper, leafminer, earwig, white grubs, aphids, thrips and termites. Many are hazardous, and some may be restricted. Choose a product only with your local Agriculture Officer, and spray only after the pest crosses the threshold level.

Follow the instructions on the product label. Consult your local Agriculture Officer before use.

Source

Crop Production Guide – Agriculture 2020 (Directorate of Agriculture, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Groundnut – Pest management strategies, pp. 193–195

Region

Tamil Nadu

Last updated

2026-11-04

Pests and diseases: ask before you spray

The source lists chemical treatments for Cercospora leaf spot and Rhizoctonia root rot, and lists leaf miner and flea beetle as pests. Choose any product only with your local Horticulture or Agriculture Officer.

Follow the instructions on the product label. Consult your local Agriculture Officer before use.

Source

Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Beetroot – Plant protection, p. 133

Region

Tamil Nadu

Last updated

2026-11-04

Pests and diseases: ask before you spray

The source lists chemical sprays for aphids, jassids, fruit borers and caterpillars, red spider mite, powdery mildew and downy mildew, and lists red pumpkin beetle, leaf miner, thrips, whitefly and pumpkin caterpillar among the pests. Choose any product only with your local Horticulture or Agriculture Officer.

Follow the instructions on the product label. Consult your local Agriculture Officer before use.

Source

Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Pumpkin – Plant protection, p. 83

Region

Tamil Nadu

Last updated

2026-11-04

Pests and diseases: ask before you spray

The source lists chemical treatments for leaf miner, aphids, rust mite, fruit-sucking moth, shoot borer, citrus butterfly, psyllid, fruit fly, mealybugs, nematodes, twig blight, scab and canker, and growth-regulator sprays for fruit set. Choose any product only with your local Horticulture or Agriculture Officer.

Follow the instructions on the product label. Consult your local Agriculture Officer before use.

Source

Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Acid Lime – Plant protection, pp. 15–16

Region

Tamil Nadu

Last updated

2026-11-04