Re: [SG] Peony root chewing insect S.O.S.
- To: s*@MAELSTROM.STJOHNS.EDU
- Subject: Re: [SG] Peony root chewing insect S.O.S.
- From: G* M* <n*@IAW.ON.CA>
- Date: Sat, 5 Dec 1998 14:16:05 -0500
At 11:03 PM 12/4/98 -0500, Marge Talt wrote:
>Hi all..
>
>One of my readers on the Suite has come up with a problem I've never
>encountered. Seems some boring type insect that closely resembles and Iris
>Borer is eating the roots of his herbaceous Peonies.
The culprit could be "HEPIALIUS LUPULINUS"(L).
A white yellow catterpillar with light colored hair which overwinters about
50 cm below surface. It metamorphoses into a pupa by april/may. The
butterflies appear my may/june. Large quantities of eggs are spread by the
adults and in 2 weeks catterpillers hatches from the eggs, which feed on the
roots, and also cause secondary infections of fungi and cause rot. Entire
plants can be killed.
Controll:
Use healthy plantmaterial
Apply ovicide when adults emerge.
Contact yr local horticultural extension service, Ag-Rep on
insectides/timing and proper identification.
George Mannoe.
