Tag Archives: Malling 9

Viruses Are Good . . . Sometimes

I suspected, and recently confirmed, that my raspberry plants have the “flu.” Okay, not the flu (as in influenza), but a virus, in any case. The plants looked okay but they weren’t bearing their usual abundant crops. And the berries that they were bearing seemed a little crumbly.

The virus culprits were narrowed down to two possibilities, raspberry dwarf bushy virus and tomato ringspot virus. Either of these viruses may also bring on patterned yellowing of leaves, or not, depending on the raspberry variety, time of year, and other variables. (No, raspberry dwarf bushy virus does not make raspberries grow dwarf and bushy.)

Not that viruses are the only things that can make raspberries crumbly. Tarnished plant bug is an insect that feeds on developing flowers and fruits of raspberries and a slew of other plants. If too many druplets of a berry are eaten, the rest of the …

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