How to control grasshoppers in GH

gardenmom(z4 WA)May 5, 2012

Zone 4 with an unheated greenhouse, so things are just starting for me. I'm picking lettuce and kale. Tomatoes, peppers, eggplants, basil, and cukes are what I usually grow in GH - everything else is outside. Most of these are in pots, awaiting planting in the GH beds. But (and here is the problem) I already have young grasshoppers in GH. I can see where they've munched on the basil and lettuce.

Any ideas for controlling them?


Thank you for reporting this comment. Undo
karin_mt(4 MT)

Are you certain it's grasshoppers? Have you seen them or just the leaf damage?
We have bad grasshoppers too but they've never found their way inside the GH, thank goodness. They are still a long ways from emerging around here, so I haven't seen any yet.

If you're certain it's grasshoppers I would try semaspore bait from Planet Natural.

    Bookmark   May 6, 2012 at 10:09AM
Thank you for reporting this comment. Undo
gardenmom(z4 WA)

I'll try the bait.
Yes, I've seen them. They're still small and green, about 3/4 inch long. I catch whatever I can. I don't usually have slugs and haven't caught any in the beer traps I set out. So I'm leaning towards the damage being grasshoppers.

    Bookmark   May 7, 2012 at 9:53AM
Thank you for reporting this comment. Undo
karin_mt(4 MT)

So I was keeping an eye out for grasshoppers after I posted that it seemed to early for them and lo and behold I did see one this weekend. Hopefully the semaspore will work. I imagine it will, because the greenhouse is a (somewhat) closed system and it seems your chances are good that they'll eat the bait. Good luck!


    Bookmark   May 8, 2012 at 6:52PM
Sign Up to comment
More Discussions
Do hoop house grown veggie starts need hardening off?
Will the veggie starts that I'm growing from seed in...
Big Buddy LP Heater installation
A few days ago I installed a Big Buddy heater in my...
Hans P. Gruetzenbach
What Kind of Black Landscape Fabric Do Nurseries Use?
I grow many roses/daylilies, etc. in pots and am building...
alameda/zone 8
Backyard boardwalk
The side of my house is planted with rows of tropical...
Subterranean Heating/Cooling System - Continued
This is to continue the discussion from the previous...
© 2015 Houzz Inc. Houzz® The new way to design your home™