Author Topic: Japanese Beetles & Hops  (Read 657 times)

Offline tonyccopeland

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Japanese Beetles & Hops
« on: June 18, 2014, 12:31:59 PM »
Does anyone have any tips for keeping Japanese beetles from turning your hop leaves into swiss cheese?  I am picking 50 or so off two second year plants each day with a bucket of soap water,  but I fear I am not able to keep up.   I am pretty bummed they looked awesome until these critters came out of the ground.

-Tony

-Tony

Offline pete b

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Re: Japanese Beetles & Hops
« Reply #1 on: June 18, 2014, 12:55:49 PM »
Keep picking them and maybe get traps that you put quite a bit away from them. Apply milky spore to any grassy/lawn areas: this won't help this year but will have a dramatic effect next year and years to come. Also, try to keep the plants as healthy as possible otherwise by giving them compost/compost tea and organic fertilizer and water deeply once or so a week if no rain. You weren't going to get much hops this year so if you can keep them healthy enough they will still be putting down roots as long as there is enough leaves for photosynthesis to still happen and the milky spore should do the trick for next year, when hopefully you will get some hops.
Renunciation is not giving up the things of the world, but accepting that they go away.
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Offline drjones

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Re: Japanese Beetles & Hops
« Reply #2 on: June 19, 2014, 10:05:48 AM »
+1 to Milky Spore.  I applied it to my lawn earlier this spring and I believe that it was very effective already (I've seen a notable drop in mole activity).  I'm in CT, so I'm not sure if the buggers have appeared here yet, but so far so good.  It should increase in effectiveness over a few years as the bacteria spreads through the soil, but I'm already pleased with this decision.  It isn't cheap - but at least it won't nuke every living creature in the soil like most commercial products out there.
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Offline tonyccopeland

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Re: Japanese Beetles & Hops
« Reply #3 on: June 19, 2014, 12:39:41 PM »
Thank you.  I've ordered some Milky Spore and will apply this week.

-Tony

-Tony

Offline erockrph

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Re: Japanese Beetles & Hops
« Reply #4 on: June 21, 2014, 09:12:41 PM »
I like to keep things organic when I can, but I didn't get my J-beetle problem under control until I started using grub treatment on my lawn. After I got that added into my lawn program my Japanese beetle problem disappeared the next season.

Neem oil works for the ones you have now, but you need to apply it often (1-2 times a week, plus after every rain). You should see a reduction in damage, but it's certainly not a total cure.
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Offline Lazy Ant Brewing

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Re: Japanese Beetles & Hops
« Reply #5 on: August 23, 2014, 08:25:43 PM »
I would be leery of getting the traps.  They attract the beetles and although you'll get a lot in your traps you'll also get a lot of them munching on everything in sight before they venture into the trap.

Although I know you wish to go organic, Malathion works well, but I don't know if it's labeled for hops.  Be sure to read and follow directions on all pesticides.

Offline pete b

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Re: Japanese Beetles & Hops
« Reply #6 on: August 24, 2014, 06:39:40 AM »
I would be leery of getting the traps.  They attract the beetles and although you'll get a lot in your traps you'll also get a lot of them munching on everything in sight before they venture into the trap.

Although I know you wish to go organic, Malathion works well, but I don't know if it's labeled for hops.  Be sure to read and follow directions on all pesticides.
IMO traps are effective if you have enough space to put them say, 50 yards away in a couple directions from where you are having problems. Otherwise I agree that if you put them close by they will attract the bugs. Milky Spore is organic and very effective so I don't think the chemical pesticides are a good choice.
« Last Edit: August 24, 2014, 06:43:39 AM by pete b »
Renunciation is not giving up the things of the world, but accepting that they go away.
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Online Jimmy K

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Re: Japanese Beetles & Hops
« Reply #7 on: August 24, 2014, 08:04:12 AM »
I would be leery of getting the traps.  They attract the beetles and although you'll get a lot in your traps you'll also get a lot of them munching on everything in sight before they venture into the trap.

Although I know you wish to go organic, Malathion works well, but I don't know if it's labeled for hops.  Be sure to read and follow directions on all pesticides.
IMO traps are effective if you have enough space to put them say, 50 yards away in a couple directions from where you are having problems. Otherwise I agree that if you put them close by they will attract the bugs. Milky Spore is organic and very effective so I don't think the chemical pesticides are a good choice.
I always tell people to buy the traps and give them to their neighbors as presents.
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