Quote: Originally posted by Skipjack Joe | Since we’re on the subject of fungus. My tomato plants here in Baja all start out well but soon pick up a fungus, wither and die. The fungus starts
from the bottom of the plant and grows up. I grow them in earthbox containers. Anybody have a good solution for that? |
Describe the fungus. How does it manifest itself on the leaves? Here are a couple of sites that describe tomato problems.
http://vegetablemdonline.ppath.cornell.edu/DiagnosticKeys/To...
https://aggie-horticulture.tamu.edu/vegetable/problem-solver...
Arent you in Asuncion? Do you get a lot of dew each evening, from the ocean and the overcast? Does it stay on the leaves, well into the morning? Damp
leaves for hours at a time are not good for tomatoes. Very prone to diseases. You dont water from above, do you? Don't!
I get powdery mildew on just about any squash or cucumber plant I grow in San Carlos. But I have never had it on my tomatoes. I am about 3/4 of a mile
from the ocean, so my air is pretty dry. Any dew from a south wind is usually gone in the first hour of direct sunshine.
I have had bouts of "early blight", at times. I observe my plants CLOSELY each and every day, and at the first sign of any leaf problems, I REMOVE
THOSE LEAVES IMMEDIATELY and dispose of them well away from the garden.
AND NOT IN THE COMPOST BIN! I have been taught to never put tomato leaves, even healthy ones, in the compost bin. Just too prone to disease carrying.
Some diseases will survive composting.
Obviously, there is a limit to the number of leaves you can remove without harming the plant. But one thing's for sure. REMOVE ALL LEAVES AND SUCKERS
BELOW THE FIRST SET OF FLOWERS. The plant will eventually discard those leaves anyway and they are prone to disease, due to proximity to the soil and
being in the shade so much. So, remove them and re-direct the plant's energy to areas that will produce fruit.
If plants are old enough and well-established, a neem oil spray can also work on many topical funguses. But it WILL harm young leaves. Neem oil
mixtures work really well on many diseases and insects, but it can be too much for fragile leaves. |