Iron shortages in plants are notorious for yellow foliage. Try applying an iron chelate to the soil when growth is first starting.
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Bayer Garden Products tells us, when treating for grape bunch diseases, that about half of the improvement is due to better air circulation and the other half using a copper-based fungicide.
A fertilizer high in the middle number — phosphorus — should be fine for jasmine.
There are two types of cracking of tomatoes, longitudinal cracks and radial cracking. Radial cracking is mostly a varietal issue.
There is such a thing as root-to-shoot ratio. What that means is that the top of the oleander tree returns to its pre-pruning height as quickly as possible. It’s because of the size of the roots.