n Farmer’s Weekly - Using IPM for diamondbacks : vegetable production

Volume 2016, Issue 16020
  • ISSN : 0041-848X



My interest in integrated pest management (IPM) was sparked many years ago when carrying out brassica trials. The trials were already complete at that stage, so I told my son to use the produce to feed his rabbits and guinea pigs - and to do it soon, as diamondback moths (Plutella xylostella) had gained a foothold on the land. Occupied with other things, I neglected to check up on the crop. When I did, I found the caterpillars had all but gone and a number of minute Cortesia wasps were 'scanning' the leaves. I also noticed small, brilliant-white cocoons on the leaves. These were very different to the longer, greenish cocoons of the diamondback.

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