Lily cater­pil­lars

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These black cater­pil­lars with white and yel­low markings at­tack strappy-leafed plants such as aga­pan­thus, crinum, hip­peas­trum, clivia and other lily rel­a­tives in the warm months. Tiny grubs start graz­ing on the top sur­face of the leaves but even­tu­ally eat their way down to devour the en­tire clump. They feed at night, so go out af­ter dark with a torch to pick off and squash the grubs. If the prob­lem is se­vere, spray with an or­ganic cater­pil­lar con­trol.

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