Forums
New posts
Forum list
Search forums
What's new
New posts
New resources
Latest activity
Trending Threads
Resources
Latest reviews
Search resources
FarmTV
Farm Compare
Search
Tokens/Searches
Calendar
Upcoming Events
Members
Registered members
Current visitors
New Resources
New posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Forum list
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
Arable Farming
Cropping
Bugger
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="yellow belly" data-source="post: 6923360" data-attributes="member: 305"><p>avoiding spraying for bydv in the autumn </p><p>is a balance between drilling date/emergence date exposure of the field </p><p>previous crop and the amount of aphid preditors </p><p></p><p>18 September is early and high risk </p><p>sheltered fields woodland can protect a field from aphid killing weather </p><p>previous crop grass or a cereal can harbour bydv aphids brassicas habour non bydv aphids</p><p>full cultivation reduces the number of aphid preditors </p><p></p><p>in 2019 if I had known the weather would have made drilling impossible after 23 September I would have drilled a week earlier </p><p>did drill 20 to 23 septemebr and have no perceptible bydv a week earlier and crops could have had a lot more </p><p>no till fields with half after osr with full regrowth of rape sprayed off a week after drilling the rape takes 2 weeks to die so the incoming aphid land on rape plants and then move on to another field as they cannot find a cereal many preditors on the ground reducing any that stay </p><p>cold area with all fields above 400 ft this slow aphid development</p><p>2019 autmn wet and cold </p><p>it is possible with extensive crop inspecting to find aphids if they are present and treat acordingly although my eyesight is not as good as it was 30 years ago but as the insecticide is so cheap reducing aphicide is not high up farmers priority </p><p>this is coming back to bite use the reduction in inscects is getting constant attention consequently we can no longer grow some crops and have to put up with some pests as they are uncontrolable </p><p>chemical companies are not going to develop new inscecticide as they will not get registered </p><p>we should be using all the cultural controls possible</p><p> later drilling on sheltered low lying freer draining fields </p><p>build up beneficials reduce grass to cereal or cereal to cereal green bridge</p></blockquote><p></p>
[QUOTE="yellow belly, post: 6923360, member: 305"] avoiding spraying for bydv in the autumn is a balance between drilling date/emergence date exposure of the field previous crop and the amount of aphid preditors 18 September is early and high risk sheltered fields woodland can protect a field from aphid killing weather previous crop grass or a cereal can harbour bydv aphids brassicas habour non bydv aphids full cultivation reduces the number of aphid preditors in 2019 if I had known the weather would have made drilling impossible after 23 September I would have drilled a week earlier did drill 20 to 23 septemebr and have no perceptible bydv a week earlier and crops could have had a lot more no till fields with half after osr with full regrowth of rape sprayed off a week after drilling the rape takes 2 weeks to die so the incoming aphid land on rape plants and then move on to another field as they cannot find a cereal many preditors on the ground reducing any that stay cold area with all fields above 400 ft this slow aphid development 2019 autmn wet and cold it is possible with extensive crop inspecting to find aphids if they are present and treat acordingly although my eyesight is not as good as it was 30 years ago but as the insecticide is so cheap reducing aphicide is not high up farmers priority this is coming back to bite use the reduction in inscects is getting constant attention consequently we can no longer grow some crops and have to put up with some pests as they are uncontrolable chemical companies are not going to develop new inscecticide as they will not get registered we should be using all the cultural controls possible later drilling on sheltered low lying freer draining fields build up beneficials reduce grass to cereal or cereal to cereal green bridge [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Arable Farming
Cropping
Bugger
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top