How na­ture con­trols codling moth

NZ Lifestyle Block - - Cover Story -

Nat­u­ral con­trols have not proved ef­fec­tive in New Zealand. Yet. Lit­tle wax-eyes ( Zos­terops

lat­er­alis, also known as sil­ver eye, white eye) will dig out over­win­ter­ing pu­pae, but it’s not usu­ally enough to be an ef­fec­tive con­trol.

A par­a­sitic wasp spe­cific to codling was re­leased in New Zealand in 1906. It has sur­vived (in un­sprayed or­chards), but it has not killed enough codling to re­duce the pop­u­la­tion.

Since 2012, Plant and Food Re­search has been re­leas­ing

Mas­trus ri­dens, an­other wasp which will lay its par­a­sitic eggs in the eggs of the codling moth. Over 60,000 have been bred and re­leased in the com­mer­cial ap­ple re­gions of Hawkes Bay, Nel­son/ Motueka and Cen­tral Otago.

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