Tools and Chemicals

Fertilizer Recommendations

Q: Most of the bushes in my yard have fertilizer recommendations of 10-10-10. For many years I’ve used liquid 10-10-10, mixing it with water from my rain barrel, but I can not longer find it. What do you recommend instead?...

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Safe Herbicides To Use Near A Creek?

Q: I have a few acres that are in need of brush control. My issue is that I have a well close to the area and my land slopes down to a creek. Are there any herbicides that are safe...

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Optimal Application Time To Apply Pendimethalin Next Year?

Q: Your recent article on stiltgrass recommended to use a pre-emergent. Can you give the optimal application time to apply pendimethalin next year?  A: Pendimethalin will control stiltgrass if it is applied before its seeds germinate in spring. Stiltgrass seed...

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Are Solar Pots Good Or Bad For Plants?

Q: Are solar pots good or bad for plants? Might they confuse a plant by shining light on the roots causing them to try to grow more? A: Solar pots are quite attractive with their soft nighttime glow. I think...

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Second Fertilization With A Kelp Product

Q: Following a pruning of our camellia hedge the professionals did a deep root fertilization and recommended a second fertilization with a kelp product. What do you think?  A: The use of biostimulants (including humic substances, seaweed extracts, and beneficial...

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Pre-emergent (pendimethalim) – Stains

Q: What could cause these stains? Bleach and a pressure washer will not clean it off. A: It sure looks like the stains caused by pendimethalin pre-emergent. The label clearly says to avoid getting it on hard surfaces. The chemical...

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How to Get Rid of Nostoc

Q: Do you have any suggestions for getting rid of the green jelly stuff in our lawn? A: You have nostoc. It’s a gelatinous colony of a type of bacteria that is usually found where grass is growing poorly due...

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Timing Of Aerate, Fertilize, And Apply Weed Control To My Lawn?

Q: Typically I aerate, fertilize, and apply a long-lasting weed control to my lawn. Do you think the effects of each activity would be less than optimal if they are done too close together?  A: I think this is fine...

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Should I Use Weed/Feed Product Under A Tree?

Q: We planted a new fescue lawn that is partially under an ancient oak tree. Is it okay to use a weed and feed product under the tree?  A: The label on most weed and feed products designed to kill...

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Dogwood – Herbicide Damage

Q: Ever seen this? My young dogwood leaves were very delayed and deformed. Strange gnarled masses forming. No blooms. Our lawn service sprayed it in mid-March with horticultural oil for scale. Also treated the surrounding lawn in May with broadleaf...

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Recommended 0-70-120 Fertilizer – What Does This Mean?

Q: We are planting soybeans in a food plot for deer. The seed company recommends 0-70-120 for fertilizer. What does this mean and can we mix it ourselves?  A: Since fertilizer dealers in different parts of the country sell different...

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Is Soil Sold For Gardening Tested For Lead Or Arsenic?

Q: Is soil sold for gardening routinely tested for lead or arsenic? Should I be concerned?  A: My bet is that all of the commercial or bagged soils are tested for lead. I doubt that bulk soil, delivered by the...

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Fescue Lawn – When Is It Safe To Put Down Liquid Weed Killer?

Q: My new fescue lawn has been growing well and has been cut twice. My landscaper used weed and feed granules but after five days I see no change in the weeds. Is it safe to put down liquid weed...

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What Is A Good Fertilizer For Our Deodar Cedar Tree?

Q: Can you recommend a good fertilizer for our lovely deodar cedar tree? A: If your tree is near another area that is regularly fertilized, such as the lawn or your flower beds, it doesn’t need fertilizing. It will get...

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Dawn Dish Soap (Detergent) – Not Recommended

Q: Why don’t you recommend using Dawn dish soap to help kill bugs and weeds? A: The number one reason I don’t mention Dawn for garden use is that it doesn’t have a pesticide label that permits it. Strictly speaking,...

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Is Ammonium Sulfate and 21-0-0 The Same Thing?

Q: Is ammonium sulfate and 21-0-0 the same thing? A: They are identical! It’s always good to remember in the back of your mind that fertilizers, whether organic or synthetic, are basically chemicals. Organic fertilizers are complex organic compounds; synthetic...

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What Kills Smilax?

Q: We have smilax growing up into a dogwood tree through large azaleas. What will kill it?  A: Smilax is very tough to kill with any method other than pulling it or digging it out. If you excavate the roots,...

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Can I Add Limestone At The Same Time As Fertilizer?

Q: I’m starting a cut flower business on my land. My UGA soil report says I needed to add 55 pounds of limestone per 1000 square feet. Can I do this at the same time I add fertilizer?  A: Lime...

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