Sawfly damage can affect the appearance of trees or shrubs but usually does not affect plant health.
What plants do sawflies attack?
Damage of Sawflies
| Sawfly (with link) | Host Plant(s) |
|---|---|
| Pear Sawfly or Pearslug | Pear, cherry, crabapple, apple, plum, hawthorn, cotoneaster, and mountain ash |
| Oak Sawflies | Oaks (varies with sawfly species) |
| European Pine Sawfly | Mugho, scots and red pine |
| Dogwood Sawfly | Dogwoods |
Where do sawflies lay their eggs?
Adult sawflies lay small batches of eggs on the underside of leaves in late spring. When the larva hatch, they feed voraciously on the leaves for a while, before dropping to the soil and pupating around the base of the plant.
Will Dawn dish soap kill sawflies?
Does soap and water kill caterpillars? Create your own nontoxic insecticide spray to ward off and kill horned worm caterpillars by filling a spray bottle with water and dish soap. The dish soap will kill the caterpillars but will not harm your plants.
Can I use Dawn to make insecticidal soap?
The recipe for homemade insecticidal soap requires only three ingredients: Dawn dish soap, vegetable oil and soft water. Mix 2.5 tablespoons of the Dawn dish soap and 2.5 tablespoons of vegetable oil with 1 gallon of warm soft water. … Furthermore, you should always use soft water when diluting pesticides.