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<blockquote data-quote="yellow belly" data-source="post: 4313390" data-attributes="member: 305"><p>I have not sprayed for bydv since the 1980s </p><p></p><p>because when I found aphid and did not spray we had no bydv </p><p>the work done then found that provided the aphids were killed before march the levels of bydv were very low </p><p>when we have sufficient frost to kill the aphids the job is done naturally </p><p>as we have not used inscecticide and now notill we have a whole army of natural preditors that do the job for use </p><p></p><p>looking in fields yesterday I found no aphids in osr and 5 grain aphids on one oat plant in my cover crop the were a number of fast moving spiders and preditory beetles within a foot of the aphids </p><p>finding aphids when the sun gets low in the afternoon is straightforward ,just look to wards the west and look for a shadow on the leaf take a picture with your phone blow it up and identifiy the aphid </p><p></p><p>resistance to pyrethroid and neonic is inevitable especially if you rely on spraying regularly killing the benificials that survive cultivations</p></blockquote><p></p>
[QUOTE="yellow belly, post: 4313390, member: 305"] I have not sprayed for bydv since the 1980s because when I found aphid and did not spray we had no bydv the work done then found that provided the aphids were killed before march the levels of bydv were very low when we have sufficient frost to kill the aphids the job is done naturally as we have not used inscecticide and now notill we have a whole army of natural preditors that do the job for use looking in fields yesterday I found no aphids in osr and 5 grain aphids on one oat plant in my cover crop the were a number of fast moving spiders and preditory beetles within a foot of the aphids finding aphids when the sun gets low in the afternoon is straightforward ,just look to wards the west and look for a shadow on the leaf take a picture with your phone blow it up and identifiy the aphid resistance to pyrethroid and neonic is inevitable especially if you rely on spraying regularly killing the benificials that survive cultivations [/QUOTE]
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