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Regenerative Agriculture and Direct Drilling
Regen Ag Crops & Agronomy
bydv risk how low is it
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<blockquote data-quote="doorknob" data-source="post: 2110378" data-attributes="member: 1240"><p>Not all aphids carry the virus, and the off spring are not born with it, even if the parent were a carrier.</p><p></p><p> They have to stop off at a virus site and pick it up. But any stem piercing insect can carry and transmit the virus to the crop at any time. The virus does not freeze out as far as I have found, only the carrier numbers are reduced by a freeze. So if you have a site that is protected from sprays or a neighbor field that was not treated, the virus can be picked up at any time and spread. </p><p></p><p> Even though the BYDV "here", which now has a couple variations, one being "cereal yellow dwarf virus", has had a low occurrence history, with the over use of insecticides that goes with the lack of rotation, the carrier predators have all but vanished.</p></blockquote><p></p>
[QUOTE="doorknob, post: 2110378, member: 1240"] Not all aphids carry the virus, and the off spring are not born with it, even if the parent were a carrier. They have to stop off at a virus site and pick it up. But any stem piercing insect can carry and transmit the virus to the crop at any time. The virus does not freeze out as far as I have found, only the carrier numbers are reduced by a freeze. So if you have a site that is protected from sprays or a neighbor field that was not treated, the virus can be picked up at any time and spread. Even though the BYDV "here", which now has a couple variations, one being "cereal yellow dwarf virus", has had a low occurrence history, with the over use of insecticides that goes with the lack of rotation, the carrier predators have all but vanished. [/QUOTE]
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Regenerative Agriculture and Direct Drilling
Regen Ag Crops & Agronomy
bydv risk how low is it
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