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Sir Cleanliness, what did you notice about the flying ability of the weevils?The ones at my house are not "weak" flyers; they're pretty good at flying. I guess that explains why I haven't had much luck with the tanglefoot on the trunk method.
I'm aware that due to the high PH of my soil, (7.6), here in central Broward County, that the mango tree's ability to absorb iron is blocked. Thus, my tree exhibits signs of chlorosis. I purchased Southern Ag's Chelated Liquid Iron. About 10 days ago I applied it as a soil drench. Yesterday I applied it as a foliar spray. I haven't yet seen any improvement. How long should it take to see an improvement in the tree?
When I apply a soil drench (3Tbs/gal...6 yr old tree), I see a change in about 1-2 weeks. The Southern AG Citrus Foilar spray however, is see a change before the end of the day (very diluted chelated liq FE spray stains my leaves). How old is the tree and what volume of Chelated FE did you use per gallon on your tree.
. . .Are you sure its iron deficiency? Pictures would help if you can...You might want to try IronPlex by KeyPlex. I have had mixed results with SouthernAg products.
Some pics. . .
Are those pics of recent flushes? If yes, on my tree it takes about 2-3 weeks for them to fully green out. Looks like you got some FE staining when the water dries on the leaves in the 2nd and 3rd pic.
Looks like iron / manganese deficiency. It can take weeks and more than one application to fully correct.
The best way of destroying white weevils..Even though the trees would be destroyed, so I wouldn't recommend it.
Manganese deficiency and mango bacterial leaf spot.
Quote from: Guanabanus on August 10, 2012, 11:56:45 PMManganese deficiency and mango bacterial leaf spot.Manganese deficiency? Surprising to hear that. . .or shouldn't I be? How can you tell the difference between that and iron deficiency? I've been fertilizing with Vigoro 6-4-6 plus minors approx every 5 weeks or so this summer.Bacterial leaf spot: what's the cause, what's the cure?Thank you!
Your Vigror 6-4-6 has .05 percent manganese, Excalibur's 8-3-9 has .49 percent manganese.Bacterial leaf spot -- spray with copper fungicide. Also, be careful, "as is" it could spread to your other mangoes.
Quote from: bsbullie on August 11, 2012, 08:44:26 AMYour Vigror 6-4-6 has .05 percent manganese, Excalibur's 8-3-9 has .49 percent manganese.Bacterial leaf spot -- spray with copper fungicide. Also, be careful, "as is" it could spread to your other mangoes.From my understanding, Excalibur sells only 50 lb bags of their fertilizer. Way too much for my needs. I have only this one Cogshall. Is there another way to add manganese to the soil?
Southern Ag has this new product I think might be worth a try: http://www.southernag.com/docs/labels_msds/eme.pdf. It's their Essential Minor Elements in granular form.
Quote from: Carbo on August 11, 2012, 05:23:34 PMSouthern Ag has this new product I think might be worth a try: http://www.southernag.com/docs/labels_msds/eme.pdf. It's their Essential Minor Elements in granular form.I would go with go with liquid as long as you need to supplement...plus KeyPlex is a better product. Not even sure if that SouthernAg product is available locally and I have never heard of anybody using it.
Quote from: bsbullie on August 11, 2012, 07:44:20 PMQuote from: Carbo on August 11, 2012, 05:23:34 PMSouthern Ag has this new product I think might be worth a try: http://www.southernag.com/docs/labels_msds/eme.pdf. It's their Essential Minor Elements in granular form.I would go with go with liquid as long as you need to supplement...plus KeyPlex is a better product. Not even sure if that SouthernAg product is available locally and I have never heard of anybody using it.Rob- what form of miconutrients does Excalibur fertilizer use? I was under the impression that it was enoughNat
Quote from: Tropicalgrower89 on August 10, 2012, 11:00:36 AMThe best way of destroying white weevils..Even though the trees would be destroyed, so I wouldn't recommend it. Isn't that one of the forum members starting up the barbecue at the last S. Florida gathering?
In Iron deficiency only the veins stay green.In Manganese deficiency the veins and a narrow strip of tissue to either side of the veins stay green.
Quote from: natsgarden123 on August 12, 2012, 12:57:50 PMQuote from: bsbullie on August 11, 2012, 07:44:20 PMQuote from: Carbo on August 11, 2012, 05:23:34 PMSouthern Ag has this new product I think might be worth a try: http://www.southernag.com/docs/labels_msds/eme.pdf. It's their Essential Minor Elements in granular form.I would go with go with liquid as long as you need to supplement...plus KeyPlex is a better product. Not even sure if that SouthernAg product is available locally and I have never heard of anybody using it.Rob- what form of miconutrients does Excalibur fertilizer use? I was under the impression that it was enoughNatdepends on the needs/price/availability and the type of plant.