Information and discussion regarding garden diseases, insects and other unwelcome critters.
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#301 |
Tomatovillian™
Join Date: Mar 2017
Location: Central Texas - Zone 8A
Posts: 196
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Double post
Last edited by TexasTomat0; May 6, 2018 at 09:32 AM. |
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#302 |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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This crazy low humidity is really helping with foliage diseases this year. I don't believe I have ever gone this far into the season without seeing at least some EB or gray mold. I usually have to use the diluted bleach spray at least once in April and usually more often and here it is nearly mid May and I haven't needed it yet. I just got in from closely inspecting my tomato plants and found no early signs of disease. I'm sure this will all change next week when chances of rain increase most of that week and with that will come the inevitable high humidity that is normal down here. I would love it if it rained good and then the humidity continued to be so low. We had one day last week with humidity of only 22% during the day. The humidity is less than 50% already and the morning is just beginning. Even though the humidity goes up at night when I check my plants first thing in the morning it is so strange to find them dry. Usually they are dripping with moisture almost like it had rained the night before. The only downside I am seeing is the need for much higher than normal watering as the plants seem to be sucking much more water out of the beds than normal. I'm enjoying it for now.
Bill |
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#303 |
Tomatovillian™
Join Date: Oct 2009
Location: Virginia Bch, VA (7b)
Posts: 1,337
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I'm going to try your bleach spray. I'm starting to see some grey mold starting on
my Black Cherry. My Carbon tomato plant on other side of yard is not showing any grey mold so far. It does seem to only affect my black tomatoes only. |
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#304 |
Tomatovillian™
Join Date: Jun 2013
Location: New Jersey 6b
Posts: 26
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Bill,
Would your bleach spray help with bacterial leaf spot on peppers? Thx |
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#305 | |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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Bill |
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#306 |
Tomatovillian™
Join Date: Jun 2013
Location: New Jersey 6b
Posts: 26
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Bill,
Thank you. Do you put your new batch into the same soil? If so, do you do anything to the soil? I have peppers in containers. EarthBoxes, actually. And can just install a new plastic mulch cover. I have read that peppers develop resistance to copper, and the new recommendation is to alternate copper with biosides (AgriPhage, Serenade, Seaweed etc) + Phosphorous Acids(Excel LG, Agri-fos ets.) Serenade + Copper is considered fine too. I did some culling of the most infected ones, removed all infected leaves from the remaining peppers, gave them MiracleGro to revive quickly, sprayed with Mancozeb+Copper. Lately our night are below 61F, and this is considered unfavorable for BLS. No new infection yet. Interested to hear about resistant cultivars, how they are holding in home gardens. |
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#307 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Just thought I would let folks know I added Bleach Spray to the tags on this thread.
This way you can find it easier. ![]() The rain is killing me and I had to use it on my Thia basil, it will either work or it wont, nothing to lose. |
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#308 |
Guest
Posts: n/a
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#309 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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#310 |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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Sorry your having so much rain Worth. There is little that can be done to stop the damage of too much rain for too long. We are having the exact opposite problem. I dread my next water bill. The good side is diseases are usually far less in dry times but things grow slower and tomatoes and other fruits don't set as well.
I used the bleach spray on English peas multiple times this year and it really slowed down the mildew. Each day after spraying they would look so much better for a few days or a week before the powdery mildew would start showing up again. It extended their life by about 3 weeks and so extended the harvest and production. I used slightly less then 5 ounces of Clorox to a gallon of water. Next year I may use it a bit stronger since their seemed to be no negatives at the strength I used. I use this slightly weaker mix on cucumbers and squash as soon as I see the first signs of mildew on the underside of any leaves. Bill |
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#311 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Out of all this horrible weather I have two set Cherokee purple fruits on one plant.
The other two Beef steak and pineapple have nothing. My mix is about 1.5 ounces of bleach to one quart of water with a drop of dawn dish washing liquid. Bacterial speck or spot is the culprit me thinks. Tiny little black specks on the leaves and it happened over night. Plant smallpox. ![]() All tomato leaves cut off that had any sign of it or anything. I just prayed again. |
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#312 |
Tomatovillian™
Join Date: Jan 2011
Location: Southeast Texas
Posts: 287
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Just gave 14 tomato plants a major haircut then followed by a bleach spraying. I am seeing signs of leaf disease. It is much easier to spray after trimming away the older branches/leaves. Will probably spray daconil this weekend, depending on the rain.
The rain seems to bring the leaf disease. ![]() ![]() ![]() ![]() ![]() |
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#313 |
Tomatovillian™
Join Date: Sep 2009
Location: Alabama
Posts: 7,068
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If you are having spot and speck problems I would suggest you use copper spray instead of Daconil because it seems to work better on them and it doesn't wash off nearly as fast as Daconil. When it is raining a lot every day then the bleach spray used during the lulls will reduce the disease problems caused by so much rain. I have used it several times a week with no ill affects when near constant rain is happening here. It really doesn't seem to have any lasting affect but it does kill off a lot of stuff that is starting up on plants during those times so that when the rain finally does let up you at least have a fighting chance to save your plants.
Bill |
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#314 |
Tomatovillian™
Join Date: Jan 2011
Location: Southeast Texas
Posts: 287
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Thanks Bill, I will give copper sulphate a try
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#315 |
Tomatovillian™
Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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I am happy to report that the bleach spray is a complete success.
![]() ![]() ![]() The spots have stopped and new growth is forming on all Thai basil plants like it was never there. I literally sprayed/soaked them every day for a week until the rain stopped. What looked like sure death is no more. Thank you so much Bill for your research and recommended mix. ![]() Here are a few shots of the plants where the disease was and after. Started out as tiny black spots on everything. IMG_20190518_36688.jpg IMG_20190518_25176.jpg IMG_20190518_13446.jpg IMG_20190518_1572.jpg Last edited by Worth1; May 18, 2019 at 03:46 PM. |
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