I grew this sapling from a pip and was doing fine. In summer last year I noticed the leaves were being eaten and found a few tiny caterpillars on it. I caught them 1 by 1 through the following night's, then the leaves started to get brown spots and turn yellow at the tips and fall off as you can see in the photo. I have potted it in a multipurpose compost, gave it a good watering and then let the rain do the watering. I only water in summer once a month when dry. I live by the sea with mild winters.
Infestations can cause lots of damage to trees, leaving its immune system vulnerable. Now that the infestation is under control, it is time to think about treatment. Chemical fungicides will be your best bet.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
I thank you for your answer. You have advised me to use a fungicide. Can you advise which one I can use.
I can't recommend specific brands, but anything containing the broad spectrum fungicide Chlorothalonil will be a good start.
your article mentions mycorrhizal fungi but not the variety I have "root rescue" with 18 varieties of mycorrhizal fungi due to the symbiotic nature of fungi to plants . could you specify variety of fungi thank-you
I did some research and did not find a particular variety for citrus. However, the soil fungal communities will vary depending on care, amendments added, and location. They will develop on their own without added products. However, it sounds like the one you purchased covers a wide range and should help.
https://www.gardeningknowhow.com/edible/fruits/citrus/mycorrhiza-in-citrus.htm
https://www.gardeningknowhow.com/edible/fruits/citrus/mycorrhiza-in-citrus.htm
Good Morning, I live in southwest Florida and my lemon bushes are in pots. Y got very warm in late February and my bushes produced sever flowers. Then we got a cold spell and the flowers dropped off and no fruit developed, will it reflower as the summer comes in or do I have a lost season for fruit? Thank you. Patt Cain
It may not reflower immediately, but it will as soon as it maintains warmth and recovers from stress. There is a chance that it could resume flowering before the heat of mid-summer.