Lamida (Macalla) moncusalis Wlk. (Pyralidae: Lepidoptera)
Male moths are dark, fuscous and the females are green. Eggs are deposited ventrally on leaves and occasionally on tender shoots singly or in groups of six
The egg, larval, pre-pupal and adult stages last 4-7, 16-22, 9-15 and 3-6 days respectively.
Post monsoon period
Mango (M. indica), jamun (S. cumini), Indian marking nut tree (Semecarpus anacardium).
Symptoms of damage
- The caterpillars feed on the terminal leaves of new shoots and blossoms after webbing them.
- Presence of webbing on terminal portions, with clumped appearance, and drying of webbed shoot/ inflorescences.
- Galleries of silken webs reinforced with plant scraps and castings, indicate the presence of caterpillars.
- It occurs sporadically and can cause damage between 25-60 per cent.
- In east coast regions, Braconids (Apanteles sp.), Elasmids (Elasmus sp., Elasmus johnstonii F.) and Tachinid (Blepharella lateralis) can cause larval parasitism up to 50 per cent.
- Apanteles sp., Avga choaspis (Nixon) (Braconidae) parasitize leaf and blossom webber larva in Kerala.
- Green lace wing, Chrysoperla sp. also predate in this pest.
- Spraying of lambda-cyhalothrin (0.6 ml/l) and profenophos (1.5 ml/l) can manage this pest.