To control Box Tree Caterpillar spray with Fruit and Vegetable Protection Nematodes. To protect your box plants / trees from Box Tree Caterpillars, spray with Fruit and Vegetable Protection Nematodes when the caterpillars are spotted and the DAYTIME temp is 12c. We supply 3 packs, which are applied 3 times at 7 day intervals. F&V works at temperatures above 12°C/40°F, so apply during the growing season i.e. between March and October. F&V TRIPLE Pack – 3 Packs sent together for controlling caterpillars. F&V is a living, perishable product (it will keep for 3-4 weeks in the fridge, see expiry on packs), so order when you are ready to apply and the caterpillars are present. Each pack treats 60 sqm.

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HOW AND WHEN TOU TREAT

Box Tree CaterpillarsThese caterpillars feeds on box plants causing severe defoliation and produce large amounts of webbing. As the caterpillars feed, areas of dieback may appear, which will be especially apparent on trimmed plants. Box Tree Caterpillars are greenish-yellow with black heads and once fully grown the caterpillars reach up to 4cm in length and will have a thick black and thin white stripes along its body. In the spring, the moths appear and there can be up to 3 generations of caterpillars a year. Box Tree Caterpillars over-winter as caterpillars rather than as moths, so it is essential to kill as many of the caterpillars as possible before the temperatures drop in the autumn. The caterpillars over-winter, hidden between leaves that have been spun together with silk and will then emerge next spring as moths to reproduce and produce the next generation of caterpillars. To make sure your box plants / trees are free from Box Tree Caterpillars before the winter, spray with Fruit and Vegetable Protection BEFORE temperatures drop.

Apply 3 times as soon as the caterpillars are first seen (normally May). Repeat 3 times at 7 day intervals. Re-apply as needed to keep the box plants free of caterpillars.