A Guide to Grapevine Abnormalities in South Africa - P.G. GOUSSARD

Boll-worm larva (360); leaf roller caterpillar (361).

PHOTO 360. A further example of the situation shown in Photo 359 – in which case a boll-worm larva emerges from the berry, thereby revealing a hole that had been eaten right through.

PHOTO 361. This fully grown leaf roller caterpillar is not averse to feeding on a tendril. Note that the clearly visible spots behind the head do not function as ‘seeing eyes’; these only serve to deter natural enemies.

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