So many pests and diseases!
I am assuming these tomato plants are doomed, but if anyone knows what this is, I’d love to know.
Don’t remember seeing anything quite like it before, although I have seen dry, crispy leaves at the bottom of plants.
What was different most recently was hotter than usual temps, during which there was a little bit of precipitation, and then fires. The plants weren’t touched by the fire, and this started just before the fire, but there are lots of ashes on them.
While the leaves on the different plants vary from dark grey to pale yellow, none are wilting, and most of the damage is at the bottom and center of the plant.
At first I thought it was spider mites, but now I’m assuming it is several things, including fungal, and I rarely have fungal problems. I’m guessing late blight? Someone has also identified spiralizing whitefly.
Oh, well. The peppers seem okay, and i guess ican make room for a September planting.
Comments (10)
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Pest or Disease problem on my Pears, Apples, Plums, Peaches.
Comments (11)Craig, Posting pictures here is pretty easy. I've posted instructions in this forum many many times, but will do it again in hopes it will help. One of the easiest ways to provide your photo to be embedded into a post is to upload it onto an image hosting site such as Photobucket, Flickr, etc. That should be pretty straight forward, and the individual sites will give instructions on how to get your photos uploaded to their site when you sign up. Once your picture has been uploaded, find its web address by right clicking on the image and copying the image location. Some sites may even provide the address in a text box below the photo for your convenience. Let's say, as an example, that the address of the picture you want to post is http://somepicturesite.com/yourpicture.jpg To embed the picture into a post, use the command img src="http://somepicturesite.com/yourpicture.jpg"> For larger pictures, it would be very very very helpful to add a width attribute. Do do so, just add width=600 after the second quotation mark. 600 is a reasonable width for Gardenweb forums and won't mess up the formatting of your post causing people to have to pan around to read the text. So, for larger pictures, the command above could be rewritten as: img src="http://somepicturesite.com/yourpicture.jpg" width=600> Note that I had to use special characters to get the commands above to show up here without turning into pictures, but you can use them as shown (with the correct image location, of course)....See MoreStopping pests and diseases with insect-proof netting?
Comments (39)Okay, I've got a few minutes. Let's take a look at some of the questions and objections others have raised. First, let me say this: IMPORTANT SIDE COMMENTS: My purpose in starting this thread was to get help from others in evaluating whether this idea might be viable or not. (It wasn't to try to convince you that doing what I've suggested is the way to go.) Hearing your objections is helpful in figuring out if I've overlooked something important or if there is something that makes this idea a no-go or not worth it from an effort-reward standpoint. In responding to your objections, I'm not trying to be argumentative; rather, my interest is in evaluating whether they are a serious issue or not really a problem (or a problem that can be worked around fairly easily). On this subject, there was a bit of mild sarcasm in my first post on the 16th. I'm sorry. Please excuse me for that. AND NOW THE ACTUAL TECHNICAL CONTENT... Objection #1: Heat build-up is going to be a big problem. Answer: I'm not really sure why that would be, although maybe I'm missing something. If I have what's basically a cage made from insect screen/netting, the sides (and potentially the top) should all have a decent rate of air exchange through them due to air diffusion, if nothing else. This isn't a greenhouse with solid sides and roofing. I would expect it to be a few degrees above the outside ambient temperature on sunny days, but that's about it. Am I estimating temperature build-up incorrectly? Related Objections: Ventilation! Humidity! Regarding ventilation, we don't get a lot of wind around here in the summer and plants still manage to do okay. As mentioned above, air will diffuse through the screen, resulting in a situation that I would guess is not that much different from what it would be with no screen at all. Nevertheless, I could periodically run a fan if needed to circulate the air. Regarding humidity, air diffusion through the screen ought to keep it in line with the area outside the structure. Objection #2: It won't stop pests, or at least not plum curculio - no screen mesh anywhere is fine enough to stop plum curculio. Answer: Are you sure? The screen ought to stop moths (e.g. the Oriental Fruit Moth). As for plum curculio, check out http://www.greenhousemegastore.com/Anti-Insect-Screen/productinfo/IS-AI/ - they say this stuff will stop western flower thrips. Compare the size of western flower thrips (http://en.wikipedia.org/wiki/Western_flower_thrips) to that of plum curculio (http://en.wikipedia.org/wiki/Plum_curculio). Although I'd like to finish this post, I really need to go now - hopefully can get back with you all in the next couple of days. Thanks!...See MoreTomato disease or pest?
Comments (1)Blossom end rot (BER) See the Tomato FAQ http://faq.gardenweb.com/faq/tomato/ Here is a link that might be useful: BER is 2nd item in FAQ...See MoreWhat disease(s) and/or pest(s) are making my sedums sad?
Comments (9)Yeah I think you're right about the white; looked again today and it was gone. The scale on the last plant if there is subtle, but how about the numerous non-subtle brown spots, some of which look eaten into the leaf? Some kind of mite? If so, here's the combo I've come up with: Acephate - Amazon: "97UP 1lb bag Generic Orthene Insect & Fire Ant Killer" - http://www.ext.colostate.edu/pubs/insect/05507.html says "Insecticide with some effectiveness against spider mites. Systemic." Forbid 4F - eBay: "Free Forbid 4F Miticide Spiromesifen 1/4 OZ free gift when u purchase 3 pipettes" - "Like Avid, it is translaminar. The active ingredient, spiromesifin, while not systemic (i.e., it does not move through the plant’s vascular system like, for example, Merit does), is absorbed by the plant’s leaves and will move from the tops of the leaves to the bottoms where the mites feed." A lot of the more mainstream systemic products use Imidacloprid, and while they don't claim to work against mites, they also don't mention that one reason that spider mites become a problem is insecticides [such as Imidacloprid] that kill their natural predators....See More
windberry zone5a BCCanada
3 years agolast modified: 3 years agonanelle_gw (usda 9/Sunset 14) thanked windberry zone5a BCCanadananelle_gw (usda 9/Sunset 14)
3 years agolast modified: 3 years ago"I wonder why you put so much effort in creating such unusual conditions (containers, plastic on top of the soil) for growing your tomatoes?"
@windberry zone5a BCCanada thank you so much for taking the time to respond ! I checked out your link. Very interesting. I think I've seen it or similar before. FWIW, I grow Dwarf Project Tomatoes which are crossed to grow in smaller spaces.
I have cherished pre-smart phone pictures circa 1997 on gardenweb of growing in the ground. Hard to post something lengthy now, so i will just say redwoods and a steep clay slope.
This last 10-14 days with the crazy heat, lightening strikes, unusual precipitation and unusual but brief humidity, and then the wildifre has been a calamity. I disagree that they will never do well. I know they can be better, but i won't give up because of that.
I guess i post when there's a problem and not when things are good, but all in all, a good tomato season.
Below is from about 2010. Good times! Not shown are the greedy hulking redwoods just a few feet beyond the carefully built redwood boxes. The irony!
This year.
I love this spot, but if I have to move, I believe you, and I will look forward to growing in the ground again.nanelle_gw (usda 9/Sunset 14)
3 years agolast modified: 3 years agonanelle_gw (usda 9/Sunset 14)
3 years ago
Robert Zone 6A
3 years agolast modified: 3 years agonanelle_gw (usda 9/Sunset 14) thanked Robert Zone 6A
nanelle_gw (usda 9/Sunset 14)Original Author