Some articles on aphid, aphids:
Potato Virus Y Transmission
... PVY may be transmitted to potato plants through grafting, plant sap inoculation and through aphid transmission ... The most common manner of PVY infection of plant material in the field is through the aphid and although aphids on their own can directly damage potato plants ... In cold climates aphids spend the winter either as wingless aphids giving birth to live young (viviparae) or as eggs ...
... PVY may be transmitted to potato plants through grafting, plant sap inoculation and through aphid transmission ... The most common manner of PVY infection of plant material in the field is through the aphid and although aphids on their own can directly damage potato plants ... In cold climates aphids spend the winter either as wingless aphids giving birth to live young (viviparae) or as eggs ...
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