Potato Leafroll Virus

The pesky aphids strike again. Yep, aphids are liable for plants with potato leafroll virus. The aphids transmit a Luteovirus into the plant tissue of the potato plants. The worst culprit is that the green peach aphid. The virus is introduced either by the aphids or previously infected seed tubers. The virus, unlike another potato plant diseases, takes a while for the aphid to accumulate (several minutes to hours) and process through its body before it's a vector of the disease. Time has relevancy , I know, but during this case, since the disease takes longer to spread, insecticides are often beneficial. Once an aphid has the disease, it's if for its entire lifetime. Both winged and non-winged aphids are liable for spreading the disease. because the aphids prey on the plant, the virus is introduced into the phloem tissue (vascular) and multiplies and spreads.

Relevant Topics in Clinical Sciences