First of all, yellowing and brown spots on the leaves of tomato plants can be a sign of different types of diseases, such as early blight, late blight, or septoria leaf spot. These diseases are usually caused by fungi that thrive in warm, humid environments and can spread rapidly in crowded, humid conditions. Based on your description, your tomato plants may be experiencing some type of fungal disease. Brown spots on the leaves, along with the white residue you mentioned, are common signs of fungal infection. Additionally, the presence of fruit flies on plants could also indicate fungal growth, as fruit flies are attracted to the sweet odor produced by fungi. To address the problem, it is important to take some steps to prevent further spread of the disease. First, you should remove all infected leaves and dispose of them in the trash, rather than composting them. This will prevent the spores from spreading to other plants. You may also consider applying a fungicide spray to the remaining leaves, especially if you see new spots appearing. As for leaf yellowing, this could be due to a variety of factors, including nutrient deficiencies, overwatering, or pests. You mentioned that your soil was low in nitrogen and phosphate, so applying organic fertilizer was a good next step. However, it can take a while for the plants to recover, as the yellowing can be the result of previous stressors. As for fruit flies, you may want to try some natural remedies, such as using sticky traps or applying a dish soap and water solution to the floor. These methods can help reduce the number of flies without the use of harmful chemicals. Finally, since you mentioned that you are a novice tomato gardener, it's always a good idea to do some research and educate yourself on common problems tomato plants can face. I would recommend visiting a website like https://thegardenplants.com/pests-diseases/leaf-problems/, which from what I've seen has quite a bit of information on leaf problems on various types of plants, although I don't think there is an article on tomatoes many of the solutions for these problems are useful regardless of the plant in question. I hope this information is useful to you and good luck with your tomato plants!

I'm not finding photos of necrotic blight, but other blights show darker spots with a circular pattern not seen on my leaves. Also my fruit is unaffected. Septoria Leaf Spot sounds and looks similar to what mine have. Either way, the treatment is removal of affected leaves and a copper spray. I will do both as well as a preventative spray on my other tomatoes. Thanks, Omni.

Hello, About a month ago, I received this small fiddle leaf fig (FLF) as a gift from a friend! It is placed near a large south-facing window, but is not right beside the window because it is a bit drafty near there. She gets a lot of sunlight throughout the day and I water only when the soil is dry to slightly moist (I check by sticking a dowel in the soil). When I first received it, I also noticed that most of its leaves were curling in-wards and felt stiff (pic #1 and 2), in comparison to some of the more "supple" and leafy-like ones I've seen on other FLFs. It's been about a month or so and it has grown two new leafs, which are quite supple and green, but not the deep dark green of its fellow leaves. I've also started noticing small brown spots on the underside of a couple of leaves (pic # 3 and 4). The weather has been on the cooler side (I live in Southern Ontario, Canada and winter is ending. So far, the weather in March/April has ranged from snow to rain/cold to cool). The air has been quite dry this winter, but during summer it gets very humid (July and Aug, especially). I'm aware that FLFs are notorious drama queens (I had a previous one that dropped all its leaves after bringing it home, no matter how much love I gave it), and I really don't want this one to die! I guess I'm wondering if the "curling" leaves are normal and if there is anything else I can do to stop the brown spots from spreading? Thank you for any assistance! Pic #1 Pic #2 Pic #3 Pic #4

Looks a lot like photo-oxidation (sunburn). Is all the damage facing the same direction, as though it might have been caused by excessive light? The necrotic areas of the leaves can't be fixed. It will gradually dry until crispy and be a part of the leaf until it's shed. It definitely wants a full repot, which is much more involved than potting up. BTW - that plants will pout until they have 'adjusted to their new surroundings' is a horticultural myth, and I JUST finished talking about that topic on this thread. Al