Headlines
test test
Share:


Did you find this story interesting?     (0) (0)

12/09/2003

Beetle threat to slow growing oilseed rape crops



The huge area of oilseed rape sitting in very dry ground conditions, waiting for rain in many areas is at particular risk from cabbage stem flea beetle, warns BASF.

"This season much of the increased area of oilseed rape is at a vulnerable stage – that is, when the cotyledons are out and the first true leaves are still developing," says the company's insecticide products manager Dave Marris.

"Damage done at this stage will significantly reduce plant populations, resulting in poor establishment and a thin crop going into the winter."

Mr Marris advises growers to keep a careful lookout for beetles on their oilseed rape crops at this vulnerable stage. "The beetles will be coming out of their summer hibernation about now – they will be hungry and looking to feed on young oilseed rape plants.

His immediate advice is to apply a pyrethroid insecticide to control the beetles as soon as the typical 'shothole' grazing damage is seen on the young leaves, particularly if soil conditions remain dry and establishment growth is retarded.

The product recommended is Contest which has been shown to give good control over an extended period - due mainly to a unique formulation that holds the active ingredient on the leaf surface, therefore exposing pests to the chemical for a longer period




No Comments


Nobody has posted any comments on this story.




Post A Comment:
*Enter verification code, as seen on the picture
Code Image - Please contact webmaster if you have problems seeing this image code 


Farming items for Sale

Related News

 Early warning for oilseed rape beetle damage - 21 Aug 2003
An 'early warning' to check now for signs of cabbage stem flea beetle damage to young oilseed rape plants has been issued by BASF. "There i...

 Beetle lavae alert on backward rape crops - 13 Oct 2003
Slow establishment and patchy growth has put much of the UK's expanded oilseed rape crop at risk from the larvae of the cabbage stem flea beetle –...

 Wet harvest legacy creates threat to emerging oilseed rape - 26 Aug 2007
Emerging oilseed rape crops face especially heavy competition from volunteer cereals and grass weeds this season. Difficult harvesting conditions have...

 Quell the threat of downy mildew in oilseed rape - 22 Sep 2008
Downy mildew is surprisingly one of the most common diseases of oilseed rape, appearing in the autumn and then building up on lower leaves in the spri...

 Early downy mildew threat in oilseed rape - 19 Sep 2009
Unsettled weather has resulted in downy mildew being found in early-drilled winter oilseed rape and an early treatment of Quell Flo (mancozeb) will no...

 If you are growing spring oilseed rape, make sure it’s Makro - 19 Dec 2011
Growing spring oilseed rape can either be part of a longer term planned rotation or as a consequence of an autumn crop failure, but whatever the circu...

 Mission – a new desiccant for potatoes, oilseed rape, peas and other crops - 22 Jul 2007
Interfarm UK Ltd is now supplying the desiccant Mission for use on potatoes, oilseed rape, beans, peas and a number of other crops. "Containing 200...

 Weeds threaten yields in backward oilseed rape crops - 12 Mar 2008
Cleavers, thistles and mayweeds all pose a serious challenge to yield in backward oilseed rape crops, according to Dow AgroSciences. "With high oil...

 Damaged oilseed rape crops demand extra protection - 23 Mar 2008
Oilseed rape crops ravaged by the huge flocks of pigeons over the winter will be more susceptible to Pollen Beetle damage this spring, and should be t...

 Top disease rated oilseed rape varieties needed to help crops off to a good start - 01 Sep 2008
With the early establishment phase being so critical to the overall success of the oilseed rape crop, sowing a disease resistant variety such as Es As...