Knowledgebase
Cherry tree help #880156
Asked August 04, 2024, 3:54 PM EDT
Douglas County Colorado
Expert Response
Hi Joseph,
I'm sorry to hear about your tree!
From what I can see, that looks like insect damage. The "window panes" are typical damage of both pear slugs (a type of sawfly) and Japanese beetles, both of which eat Cherry trees. Have you seen any insects active on the tree?
Unless the tree is defoliated completely or multiple years in a row it is likely to be just fine, just make sure it is getting adequate water (which it likely is, from the lawn).
I hope this is helpful!
Cordially,
John
For Japanese Beetles, if you want to eat your raspberries, a great option would be Bt variety galleriae, a bacterium that infects scarab beetles and lepidopterans when ingested. It is safe for humans, pets, and other insects. You can find it sold as BeetleGONE and BeetleJUS, for example. This needs to be applied every couple of weeks (or if it rains heavily) but has residual activity that will protect your plants.
For small infestations, hand-picking the beetles is an option too.
For more information, please see: https://extension.colostate.edu/topic-areas/insects/japanese-beetle-5-601/
Good luck!
John
Sent from my iPhone
On Aug 8, 2024, at 10:36 AM, Ask Extension wrote:
HI Joseph,
Many things love strawberries! Last year we had a volunteer who discovered that foxes were eating them, for example. To try to figure out what creature is causing the damage, you might visit the strawberry patch after dark with a flashlight; insects and slugs will be present eating at night and will hide during the day. If you can positively ID the culprit, you can tailor a treatment option.
If you can elevate the fruits as they're developing, that can help protect them from slugs or earwigs, both of which can cause a lot of damage to ripening berries. (Some growers, particularly in organic systems, use elevated beds to try to minimize damage).
Residual insecticides can also provide protection from insects. Birds and mammals can be excluded with netting or fencing.
I hope this helps!
John