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Pole bean vegitative stress #874082
Asked June 21, 2024, 1:22 PM EDT
Pole beans growing in my earth box, the new leaf growth is small, curler, ragged, and pale on first phase planting. Second phase planting is better, but some leaves have spots which are similar to what is occurring on nearby cucumbers.
El Paso County Colorado
Expert Response
Good morning,
Is it possible that an herbicide was applied to a nearby lawn after the beans were planted? This looks a bit like herbicide damage but there are also some other options.
Thanks,
Michelle D
Master Gardener Apprentice
On Jun 24, 2024, at 12:01 PM, Ask Extension <<personal data hidden>> wrote:
Unfortunately, it sounds like your beans may be infected by curly top virus. I'll include a links to details here and here. This virus is spread by bugs, and usually doesn't show itself until after the first wave of leaves are developed. It makes new leaves pucker and turn downward. There are not any good treatment options. The beans will most likely survive, but be unproductive. You may have to remove and destroy the infected plants in order to protect the rest of your garden.
Please reach out with any other questions,
Brody K
Colorado Master Gardener Apprentice
On Jun 24, 2024, at 2:19 PM, Ask Extension <<personal data hidden>> wrote:
The disease is mostly spread by Beet Leafhoppers. Removing the infected plant close to the other plants isn't ideal, but you should be safe if you cover the other plants with netting or other covers to prevent bugs moving from plant to plant. The soil COULD be used, but I'd probably remove the soil and use clean soil for the rest of the season. Replanting is fine after the new soil is in. Just make sure to cover the new plants with nets or covers as well to prevent the Leafhoppers from infecting them.
Good Luck!
Brody K
