Black Spot Disease On Roses – Rotating Chemicals
Q: I believe my unhappy roses have black spot disease. What should I do?
A: Black spot disease can rapidly make a rose raggedy. You can prevent the disease from affecting new leaves by spraying with a rose fungicide. The best practice is to rotate between at least two different fungicide chemicals. Propiconazol (Infuse), chlorothalonil (Daconil), and tebuconazole (Bioadvanced All-in-One) are commonly available. Follow label directions exactly. If you haven’t fertilized, you should do that now to encourage new growth.
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name that plant
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January calendar
January is typically the coldest winter month. Still, you can accomplish such garden tasks as sharpening...
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Popular topics
Soil Spring Summer Seed Winter Fall Flowers Weed Fertilizer Disease Shade Temperature Pine Pots Oak Mulch Pruning Watering Container Maple Compost Herbicide Birds Moisture Tomatoes Azalea Poison Pears Hydrangea Glyphosate Cherry Caterpillar Pests Roundup Irrigation Pre-Emergent Stone Pesticide Dogwood Peach Pine Straw Spider Greenhouse Magnolia Squash Beans Squirrels Poisonous Travel Lemon
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Trending Posts
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1
Soldier Fly Grubs – In Compost
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2
Mushrooms – Growing from Bottom of Pot
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3
How to Soil Test
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4
Cardinal Climber Vine Not Blooming
-
5
Lycopodium – Ground Pine
-
1
Aftercare for poinsettia, amaryllis and paperwhite narcissus plants
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2
Vole – Damage to Plants and Control
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3
Dracaena surculosa blooming
-
4
Soldier Fly Grubs – In Compost
-
5
How to Prune a Coral Bark Maple
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Walter’s Bookshelf
Browse and purchase gardening books by Walter Reeves, plus select titles by other authors.
View books -
-
January calendar
January is typically the coldest winter month. Still, you can accomplish such garden tasks as sharpening...
Get The Checklist
-
-
Popular topics
Soil Spring Summer Seed Winter Fall Flowers Weed Fertilizer Disease Shade Temperature Pine Pots Oak Mulch Pruning Watering Container Maple Compost Herbicide Birds Moisture Tomatoes Azalea Poison Pears Hydrangea Glyphosate Cherry Caterpillar Pests Roundup Irrigation Pre-Emergent Stone Pesticide Dogwood Peach Pine Straw Spider Greenhouse Magnolia Squash Beans Squirrels Poisonous Travel Lemon