Can you spray Fire Blight spray at the dormant stage of apple trees to kill over wintering spores or do you need to wait until the trees blossom?

My tree care professional said that the spray needs to go on the tree when it is in full bloom. The bees landing on the flowers bring the fire-blight. If there are no blossoms the the bees aren't landing there. The point is to cover the blossoms with the antibiotic which gets on the bees legs when they land on the blooms. It's sad that the person selling the product isn't aware of this.

how many treatments does one can make? I have around 100 semi-dwarf trees that may need treatment and need a guess-a-mate for how much I should buy?

Treatment depends on extent of disease and size of tree but just from a math perspective: each box has 2oz of very fine powder (like coco) so it a little over 7 tbsp. Each tbsp makes 2 1/2 Gal of liquid. I use about a gal on a large Asian Pear (10-12ft) so that may translate to 2 dwarf trees. So for around 14Gal/ tin you may be able you get about 25-30 trees. For a 100 trees that's about 4 tins per application and I had done about 3 applications 2-3 weeks apart. So in short you may need a dozen. See if there is a bulk pack or bigger size. Good luck!

How many ounces is this product? okay to use on apple trees?

Just a table spoon in a water sprayer will go a long ways. Get to the trees before they product fruit or wait until Spring before the trees bd.

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Fertilome Fire Blight Spray - 10363

Product ID: 11497420

Details

Brand
ferti-lome
Item Weight
2 Ounces
Item Form
Powder
Liquid Volume
2 Fluid Ounces
Specific Uses For Product
Plant Growth

🌿Powder form for easy mixing

💧2 fl oz liquid volume coverage

🛡️Protects healthy growth, prevents new infections

AED 98

Duties & taxes included

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Description

🛡️ Defend your garden’s glow with every spray!

SPRING ESSENTIAL - Keep on hand for seasonal fire blight prevention and plant health
RESIDUE FREE FINISH - Sprays evenly without heavy residue, maintaining plant aesthetics
PRECISION PROTECTION - Targets fire blight on multiple species including apples and pears
TRUSTED EFFECTIVENESS - Backed by 4.5-star rating from 444 users who slowed infection spread
EFFORTLESS APPLICATION - Mixes easily with 1 tbsp per 2.5 gallons for even spray coverage

Fertilome Fire Blight Spray is a 2-ounce powder formula designed to protect and prevent fire blight disease on a variety of plants including apple and pear trees. Easy to mix and apply, it effectively slows infection spread while leaving no heavy residue, making it a must-have for proactive gardeners aiming to maintain healthy, vibrant growth each season.

Specifications

ASIN	B005XOPBCU
Application Method	Spray
Best Sellers Rank	#130,390 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,156 in Garden Fertilizers
Brand	ferti-lome
Brand Name	ferti-lome
Coverage	Medium
Customer Reviews	4.5 out of 5 stars 451 Reviews
Item Form	Powder
Item Weight	2 ounces
Liquid Volume	2 fluid ounces
Manufacturer	Fertilome
Mixing Ratio	1 tablespoon per 2.5 gallons
Model Number	10363
Number of Items	1
Part Number	FE10363
Specific Uses For Product	Plant Growth
Target Species	Crabapples, Pears, Pyracantha, Chrysanthemums, Rhododendrons, Dieffenbachia, Roses
UPC	732221103634
Unit Count	2 Ounce

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TrustScore 4.5 | 7,300+ reviews

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