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Cutworm caterpillars live in the soil and can feed at the base of plant stems, causing plants to collapse.
A mixture of nematode species for controlling caterpillars and some other vegetable pests is sold as Fruit and Vegetable Protectionand is available from some biological control suppliers. To be effective the nematodes need to be watered into moist soil while soil temperatures are in the range of 12-20ºC (54-68ºF) as soon as possible after purchase/delivery. These temperatures occur between April and September. Nematodes should be applied as soon as possible after purchase, following the suppliers’ instructions. It may be necessary to water the soil before and after application to ensure the soil is sufficiently moist for nematode activity and survival. Repeat application may be necessary.
Biological control suppliers (Adobe Acrobat pdf document)
There are currently no pesticides available to home gardeners or the treatment of soil pests.
Angle shades mothBiological pest controlBox tree caterpillar Brown tail moth Buff-tip moth Carrot flyChafer grubs in garden borders Chafer grubs in lawnsChemical labels explained Chemicals: using a sprayer Chemicals: using safely and effectively Chemicals: storing and disposing safely Cotoneaster webber caterpillars Elephant hawk moth Lacky moth Moths: encouraging into your garden Oak processionary moth Protect your garden SlugsVine weevilVoles
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