Information and discussion regarding garden diseases, insects and other unwelcome critters.
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June 8, 2008 | #1 |
Tomatovillian™
Join Date: Jan 2008
Location: Zone 4 Lake Minnetonka, MN
Posts: 967
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Aphids a first for me
I have been very lucky with tomato pests in the past 3 years but out checking on my black krim (puchased plant 6 weeks ago not on the original plan to grow) and inscpecting saw a few ants crawling arond (diifferent problem) and saw what I thought were ant eggs but upon further inspection they were green aphids.
This explains the curled leaves that I thought was from too much water from the rain/hail the last week or so. I removed some of the very lower branches as those needed to go at some point and since they had aphids on the underside I thought this was the best time. I sprayed with a non-organic incecticide that did say it controlled aphids anything else I should be doing? I am a container gardener and so far only the black krim has any aphids. |
June 8, 2008 | #2 |
Tomatovillian™
Join Date: Jan 2008
Location: Ozark, Mo.
Posts: 201
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I've been spraying weekly, or as close to weekly as weather permits in between rainstorms, with both Daconil and Sevin.
This time of year, I've found that tomatoes get attacked a lot by aphids and flea beetles. It's been about 5 days since I sprayed, and today was hot and sunny. Today, I noticed elongated little white specks on my tomato leaves, which I'm pretty sure are the shells of aphid eggs that have hatched. We've got still another 2" rain predicted for tomorrow, and right after that I'll spray again. I've found that you just have to stay on top of this with a regular spray schedule for both fungus diseases and insects to prevent damage before it happens. |
June 9, 2008 | #3 |
Tomatovillian™
Join Date: Jan 2007
Location: Southwestern Ontario, Canada
Posts: 4,521
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Have you tried companion planting with your containers? In about every other to third container I usually put some garlic chives, the others I plant marigolds at the base of the tomato plants. In the past 7 years since I started doing this, I've had no probs with aphids. Before that they destroyed all the leaves on my tomato plants. Aphids particularly don't like Marigolds. So I plant them around the bases of my roses too. Haven't had to spray them for aphids in closer to 15 years since I started planting them around the roses. I prefer to use something more organic especially around food crops, so the companion planting works for me. Good luck whichever you try.
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June 9, 2008 | #4 |
Tomatovillian™
Join Date: Jan 2006
Location: Saumarez Ponds, NSW, Australia
Posts: 946
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Ozark, aphids, as far as I know, bear their young live, so those eggs belong to something else.
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Ray |
June 9, 2008 | #5 |
Tomatovillian™
Join Date: Aug 2007
Location: Victoria. Australia
Posts: 543
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Try hanging a banana skin in each of the tomato plants that have the aphids, it is supposed to 'deter' them. Works for roses too.
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June 9, 2008 | #6 |
Tomatovillian™
Join Date: Jan 2006
Location: NJ Bayshore
Posts: 3,848
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Ladybugs love my pool -
So I rescue them and place them on aphid infected plants. Has worked awesome so far!!! Can't go any "greener" than that ... ~ Tom
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My green thumb came only as a result of the mistakes I made while learning to see things from the plant's point of view. ~ H. Fred Ale |
June 9, 2008 | #7 | |
Tomatovillian™
Join Date: Jan 2008
Location: Ozark, Mo.
Posts: 201
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Quote:
They reproduce both sexually and through parthinogenesis. The first method involves eggs, but with the second each female produces about 5 other females a day without a partner and without eggs. Some of the females grow wings and can travel hundreds of miles with the help of the wind. The white specks on leaves that I'm talking about are tiny, about the size of a grain of salt. They're elongated and they look empty, like a tiny strip of skin. If they're not the remnants of eggs, then maybe they're the shed skin of aphids as they grow - I don't know. I do know from experience that when you see those white specks on leaves it's a sure sign aphids are present. |
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June 9, 2008 | #8 |
Tomatovillian™
Join Date: Mar 2008
Location: Kansas CIty
Posts: 560
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I'm (fingers crossed) still aphid free this year! Last year, they devastated many of my plants despite sevin dust, and insecticidal soap...this year, not an aphid to be seen! I have not sprayed a single insecticide or used soap yet. The only thing I've done differently is use the reflective mulch film...I'm a firm believer in it now!
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Kansas City, Missouri Zone 5b/6a |
June 9, 2008 | #9 |
Tomatovillian™
Join Date: Jan 2008
Location: Ozark, Mo.
Posts: 201
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huntoften - The article I just read about aphids said that the flying ones go great distances and they land by keying in on a color - dark green. Commercial farmers have had some success in minimizing aphids by planting strips of dark-green plants away from their light-green crops.
Since travelling aphids are so sensitive to color, it may be that your reflective mulch keeps the first colonizing aphids from landing on your tomato plants. |
June 9, 2008 | #10 | |
Tomatovillian™
Join Date: Jan 2008
Location: Zone 4 Lake Minnetonka, MN
Posts: 967
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June 9, 2008 | #11 |
Tomatovillian™
Join Date: May 2008
Location: Northern California
Posts: 83
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Think about lacewings...
An introduction of Lacewing Larvae can clean up
an aphid population below the threshold in 24 hours. Verocious little critters. We always keep some around in "cool" storage during the early season Sign up for our New FREE Newsletter Natural Controls of Garden Pests |
June 9, 2008 | #12 | |
Tomatovillian™
Join Date: Jan 2008
Location: Zone 4 Lake Minnetonka, MN
Posts: 967
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Quote:
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June 10, 2008 | #13 |
Tomatovillian™
Join Date: May 2008
Location: Northern California
Posts: 83
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Finding the Lacewing....
You already have them in your garden ,
just probably not enough. Call Ron at Rincon Insectary, the First Company in the Commercial Production of Lacewing. 800-248-2847 Tel him Chuck sent you Me in 1964 on our HUGE Lacewing and other Bug Collector Ah, wasn't youth Grand....! Don't forget to subscribe to the soon to be released FREE Newsletter, bringing everything up to date http://beginnersmarketingclass.com/rincon.html We will have actual Order pages up soon, for Lacewings and all the other fine Biological Control pest and predators available. I am going back to my YOUTH, what a thrill! I remember so well in 1963 growing Lacewing in the bedroom.. We wre all CRAZY, but the system works |
June 21, 2008 | #14 |
Tomatovillian™
Join Date: Mar 2008
Location: Kansas CIty
Posts: 560
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Found some aphids on my cherry tomatoes this week. They are the only tomatoes not mulched with the silver film. It wasn't a major infestation, but there were some clusters of 20-30 on a few of the new leaves...they reproduce fast though!
I used castille soap last year and wasn't impressed with the results, but I didn't notice them until the infestation was major though. I bought a bottle of Pyola concentrate this winter and remembered it when I saw the aphids. I mixed a couple of spoons full of it in a spray bottle and mixed with water. I sprayed the plants three days ago and again yesterday...today...no live aphids! A lot of dead soldiers, but no aphids!
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Kansas City, Missouri Zone 5b/6a |
June 27, 2008 | #15 |
Tomatoville® Moderator
Join Date: Jan 2006
Location: San Antonio, Texas
Posts: 4,386
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I bought green lacewings this year for the first time-aphids have been a problem for me on my chile and eggplant. No aphids this year have survived the green lacewings.
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Michael |
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