Citrus butterfly: collect and destroy larvae; Bacillus thuringiensis 1 g/l or neem oil 10 ml/l at new flush. Psyllids and leaf roller: yellow sticky traps (50/ha), a light trap (1/ha), releases of Trichogramma chilonis and Chrysoperla, NSKE 2.5% with mineral oil 0.25%, and border crops of sorghum or cowpea to keep natural enemies. Avoid sulphur sprays; a chemical leaf-spot spray is also listed — ask your officer.
Pending expert review
Source
Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Curry Leaf – Plant protection (bio-intensive IPM), pp. 158–159
