White stuff on dwarf grapefruit and lemon tree leaves, any ideas?
Kelly(zone 10a, California) GrowingCitrus
8 years ago
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Mohammad Al-Lawati
8 years agoRelated Discussions
Meyer Lemon Tree leaves funky
Comments (3)Citrus leaf miner....a severe infestation....See MoreSome yellow meyer lemon tree leaves - new tree
Comments (17)Vegas, organic gardening is certainly not a crock and luckily, many hundreds of thousands of growers are willing to go the extra mile to produce organic fruits and vegetables. You should know, though, that you will have to study up on the nutritional requirements of citrus in general...and figure out how to provide them,organically, within the confines of a container. You are going to have to provide everything that your plant needs; citrus have some specific micro-nutrient requirements. I see nothing in the Jobe's product that disturbs me too much, though it does not have micro-nutrients, also called miner elements. Fish emulsion could assist in providing some key elements, when used in conjunction with your Jobe's. HOWEVER! It really isn't intended for container culture. There are no directions that I see on the label as to dose and frequency. Another aspect that is troublesome is that I can see how repeated use of this product would muddy up your potting mix....fill the so important pore spaces with fine particles. If you were looking for a product with a high Nitrogen analysis, you'll have to go with something other than your 'organic' products. Lots of container hobbyists resort to the commercial soluble fertilizers, while still using using organic methods for the rest of the plant care. I'm not saying that you should, but just be aware that you will have to keep up with the fert. in order to provide your citrus with what it needs. Another factor in the yellowing 'may' be the potting medium. Again, container culture is entirely different that growing in situ. Garden soil or compost added to a perfect good potting medium can result in a mucky, slow-to-drain mixture. Roots can function in that kind of environment, which is why we have learned to provide a potting mix that remains coarse textured and porous. I may not be the only one that would love to see you re-pot your plant entirely. I'd also like to warn you that moisture meters are notoriously inaccurate. Most of us have learned to rely on the most sophisticated digital equipment we have....our fingers. ;-)...See MoreDwarf meyer lemon tree lost all leaves
Comments (25)I bonsai Plants, and currently have a Tangerine * and an Avocado no bigger then a small dog* in my care. My tengerine needs a good root pruning. Ya thats what I said a root pruning. As long as the Branches to not exceed more then half of the root ball, then your making a very healthy plant. This will back up any statement I plan on saying, Look up the art of the Bonsai. Which involves a lot of pruning roots and branches even citrus trees. In containers it is often that the soil gets compacted, this causes the little issue I am having, ware its winter and it needs it roots trimmed. * I hate using garbage bag in doors and it just gets messy* the act of simply loosening the soil, helps a lot, since containers do not have earth worms to keep it nice and airy. however in instances when in a pot, your roots tend to out grow the leafy part causing well the loss of leaves. Roots need energy to stay alive as well. If you have to much of a Leafy top to your tree, you loos leaves again, resulting in again your's and mines issue. However mine is simply due to it being that time for a root pruning, as my roots have out grown there leaf top. That and its pretty compacted in there..... I should probably changed the soil all together, but its winter ware I am at in winter potting soil is a rare find....See MoreMeyer Lemon Tree with Wilted Leaves and White Cake Under Leaves
Comments (8)Sean, as long as your Vigoro has micronutrients, that's fine, but I would also hit it with a foliar application of Grow More Citrus Growers Blend. It is something you want in your "citrus arsenal" here in S. California. With all the heavy, cold rains we've experienced in the last 2 years, you're going to run into the same issue I have with citrus in the ground (my soil is mainly DG here in N. San Diego county near the coast): a leaching of micronutrients, especially magnesium. So, start with the Vigoro, but do make a foliar app with some micronutrients. You'll see the difference, promise :-) And Tim's right, no pruning for now. Wait until you obviously need to do some MINOR shaping. Remember, with citrus, pruning equals no fruit. Citrus produce fruit at the tips of their branches, so you're cutting off your next fruit crop when your prune! And Tim's advice about removing suckers is right on. Just break them off if they're soft. If they've hardened off, trim close to the rootstock. Our water isn't too alkaline here in San Diego county - about 7 to 7.6. Fine for citrus. But, for your little guy, acidifying the water with some vinegar and pouring it over the fertilizer may help prevent the micronutrients from getting locked out due to the alkalinity. You guy needs a bit of a rescue. Tim's advice is good. Once recovered, you probably won't need to acidify your water. You can also achieve this with your foliar application - acidifying the water you use to dissolve your Growers Blend in. When you pick up your moisture meter, pick up a decent pH meter (don't buy the cheapest one). It's worth having these in your gardening tools. I've had both my moisture meter and my pH meter for many years. Great tools to have! Patty S....See Moretom1328732
8 years agoKelly(zone 10a, California) GrowingCitrus
8 years agolast modified: 8 years agoUser
8 years agoKelly(zone 10a, California) GrowingCitrus
8 years ago
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