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Tropical Fruit Discussion / Re: Mango Pests, Diseases, and Nutritional Problems
« Last post by DuaneC59 on Today at 01:43:49 AM »
4 weeks ago I began applying weekly copper to the new buds on this PPK. We had several days of temps down to 35 degrees followed by heavy rain. In the last 2 weeks most of the buds that I sprayed have turned brown but the PPK has the leaf changes shown here and the dead flowers. I thought most of the copper had been washed off by the rain which was heavy for Southern California. I see similar bud damage on most of the trees that I sprayed except Sein ta Lone and a few others. The copper was pretty dilute - only 3ml of concentrate per quart. I am in California, Zone 9b/10a. Any thoughts?
Thanks.