What's eating my columbine leaves?
Similarly, what animals eat Columbine plants?
While no plant is deer-proof, columbine is generally considered rather deer resistant. In our area, once you rule out the deer, you have two other common leaf-munching pests to consider: groundhogs and rabbits. Barbara can't check to see what sort of bite pattern she has since the entire leaf is gone.
Furthermore, how do you get rid of aphids on Columbine? Columbine Aphids Aphids damage the plant when they pierce the leaves to suck out the juices. Often, a strong stream of water directed at the plant is enough to knock off a light infestation. Serious infestations are best treated with insecticidal soap or horticultural oil.
Considering this, how do you control sawfly larvae?
- Cultivate around trees and shrubs in the early spring and again in the fall to help reduce the overwintering population.
- Wash slugs off leaves with a strong jet of water from the Bug Blaster; larvae may also be sprayed with Safer® Soap.
- Apply food-grade Diatomaceous Earth for long-lasting protection.
Why are my columbine leaves turning yellow?
This normally happens after Columbine flower in areas with hot or dry summers. If you keep the soil evenly moist, this may not happen, but if the leaves do turn yellow or die down, cut them back to the ground. They often turn yellow or brown after flowering in late summer, especially if the plants are in full sun.