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Discussion in 'Grape Growing & Vineyard Forum' started by JCBurg, Aug 5, 2019.
Rice_Guy Kudos for thinking outside the box!
I would like to know how this proceeds. Currently I have a 3 pronged attack, mechanical (traps), chemical (Sevin), and biological (milky spore). I had very little problem this year, but I think it may have had something to do with the constant rain we had at the start of the season. It appears that the grubs can't breathe under water for long.
Dennis I couldn't find failed or successful experiments testing the diatomaceous earth, either at the homeowner level, or university type studies. Now I wish they would show up again...
Beetle season must be almost over here in the Colorado foothills. Seeing way fewer the last week and smaller body counts in the bag. Going to try nematodes this month for future reductions. Hate to think of poisons. Besides, the squirrels and coons are as bad.
I got lucky and the influx of beetles attracted some local bats and then the beetles were gone.
Look into attracting bats for a natural solution. Sevin is the go to for beetles tho.
Another tactic would be to put up some bait plants and hose the beetles down that flock to it.
One was a type of tree and the other was a weed that grows wild. I lost track of the tree but I will get you a pic of the weed.
The beetles seemed to like the weed more than the grapes!
Here is the weed. No idea what it is.
Knotweed, and JBs love it.
Beetles are almost gone here in Denver; one or two per day. What tells them the season is over; just last years hatch complete?
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