[ASC-media] WEED CONTROL KEY TO MITE CONTROL: GRDC Grain Flash

BRENDON CANT brendon at iinet.net.au
Thu Jan 24 03:32:50 CET 2008


WEED CONTROL KEY TO MITE CONTROL: According to Svetlana Micic, GRDC
supported entomologist with DAFWA in Albany, the time to take action against
redlegged earth mites (RLEM), which are serious pests of emerging canola, is
in the previous season.<?xml:namespace prefix = o ns =
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RLEM feed on plants by probing in the cells on the upper surface of leaves
and sucking up the discharged sap, causing a silvering of the leaves. This
can look like frost.

 

"Mite numbers can be reduced by controlling crop weeds," Ms Micic said.

 

"Weed free crops, especially cereals, have few mites and over-summering eggs
to carry through to the following season."

 

Also, grazing pasture through the previous spring to less than two tonnes
per hectare feed-on-offer (dry weight) will reduce mites and can control
numbers as effectively as chemical sprays.

 

Another option is to spray once in spring to prevent females laying
over-summering eggs.

 

Information is available from HYPERLINK
"http://www.timerite.com.au/"www.timerite.com.au or the WA Department of
Agriculture and Food.

Contact: Svetlana Micic, Tel 08 9892 8444

 Authorised by Grains Research & Development Corporation (GRDC)

 and issued on its behalf by

Brendon Cant & Associates, Tel 08 9384 1122

 

 

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