https://www.ispotnature.org/species-dictionaries/uksi/Hylemya

Caterpillar webs the leaves with silken threads and feed inside the shelter. Injury - found around the growing points of the shoots larvae will feed on the leaves and may also bore into the flower buds. A mixture of carbaryl and dicofol is recommended for the

Thrips: Thrips tabaci Symptom of damage Nymphs and adults suck the sap from leaves Plants become yellow often with black specks and slight crinkling. In severe attack the growth of the plant is adversely affected. Streaks on the flowers making them unmarketabl

Nymphs and adults suck the sap and feeds on flower buds, leaves and terminal shoots It also transmits mottle virus. Globular yellowish green to brown or black in colour Spray dimethoate 30 EC @ 1 ml/l of water before the opening of flower.

Red spider mite: Tetranychus urticae , T. cinnabarinus Symptom of damage