Pests & Disease

• Grubs

  UConn Home & Garden Education Center – University of Connecticut Symptoms of grubs Grass pulls up easily with no roots underneath Grass pulls back like pulling back a sheet Brown spots Irregular shaped dead patches   How to treat Apply a preventative treatment of Grub and Insect Control at the end of June. Apply a...

• How do I control chinch bugs?

  Chinch bugs are common lawn pests that can cause the lawn to have significant signs of damage, including large yellow patches of grass that turn brown or an increased amount of bird activity near your lawn.       Chinch bugs are small in size, averaging only about ⅛ to ¼ inches long, and most identifiable...

• How do I get rid of moss?

  Moss can be eradicated by mechanical means such as hard raking or scraping. You can also rent equipment to help in this job if you are trying to fix a large area and use Lawn Moss Control. This will kill the moss usually within 7-10 days, turning the moss black.   Note: Do not apply...

• Leaf spot

  Leaf spot is a type of fungus that occurs in environments when temperatures tend to be between 40-80° F, and in soils with high nitrogen levels.    What to do: Apply Lawn Fungus Control when disease first appears and make applications at 14-day intervals as needed. Increase the frequency and height of mowing. This will cut off...

• Does Grub and Insect Control harm earthworms?

  When applied according to directions, Grub and Insect Control will not kill earthworms or the beneficial microbes in your soil.

• Red thread

  Red Thread (note the light red hue to the damaged grass blades) is a cool-season disease that is controlled by applying nitrogen. Veri-Green is an excellent fertilizer to apply to red thread in the early spring. Pink in color, red thread spreads by pustules “exploding “and spitting fungal material up to 8 feet. This is...

• Dog vomit fungus and other mushrooms

  Dog vomit fungus (and mushrooms in general) is indicative of something rotting in the subsoil; perhaps a tree stump or a dead animal. Fully remove the mushrooms and discard them. To manage mushrooms, aeration is necessary to break up the existing dense fungal mat of mycelia.    How to remove mushrooms:  Determine the depth of...

• Can I apply Lawn Fungus Control with other products?

  Yes. Lawn Fungus Control can be applied at the same time that you apply any turf products, including grass seed mixtures. Each application of Jonathan Green’s Lawn Fungus Control will provide effective turf disease control for up to twenty-one days. It works systemically from inside the grass plant to control leaf spot, dollar spot, striped smut, fusarium...

• Snow mold

  ​Snow mold is caused by lack of air movement in the soil due to frozen ground and compaction. It may occur in the spring even if there has been little or no snow. Spore populations often establish in early spring and if not treated with nitrogen, will kill the grass.    How to remove snow...

• Is it safe to use Lawn Moss Control after seeding?

  Lawn Moss Control can be used after the new seedlings have been mowed three times. At that point, it may be too cool and it may be best to wait until spring. Mag-I-Cal can be applied now in all areas.

• How long do you recommend waiting between an application of Lawn Fungus Control and Lawn Grub Control?

  There is no time between needed. They can be applied on the same day if you want to. Apply both and water in well after the second product has been applied to the lawn. 

• Apply Lawn Fungus Control and Love Your Soil for warm weather fungus.

  Lawn Fungus Control is a systemic fungicide for both preventative and curative treatments. Fungus is seen most often at temperatures of 80°F when humidity levels are very high. It spreads through mycelia, which “jump” from spot to spot. Mycelia use water and moisture to move throughout the lawn. Therefore, water in the morning and NOT at night to...

• Can I treat lawn fungus and insects at the same time?

  Yes, however, it is important to remember to carefully follow all product recommendations and package directions prior to application.   If you want to prevent lawn fungus and grub/insect infestations, we suggest applying Jonathan Green Lawn Fungus Control first, then applying Grub & Insect Control second, and water it in immediately. If you are applying Organic...

• Urine Burn

  Urine Burn Small amounts of urine may produce a green up or fertilizer effect while larger amounts often result in lawn burn or dead patches. To help prevent urine damage, pour water on the area after the dog has gone to dilute the urine. For a quick fix, rake out the dead grass and apply...

• What is the difference between moles and voles?

  Moles eat insects while voles eat plant roots.  Moles are just plain ugly and voles look much like mice but have shorter tails.  Moles like to eat earthworms best and grubs and other soil insects act as appetizers if earthworms are not present.   Moles tend to come and go with the weather and are very...

• Fungus

  Fungus The fertilizer did not cause the fungus. The fertilizer helps the pathogen in the soil thrive. Constant moisture (including humidity) promotes common summer lawn diseases including red thread, summer patch, brown patch and dollar spot.  You can manage these diseases with proper cultural practices in your lawn care program including proper watering and mowing.   You can help...

• How Do I Get Rid of Mushrooms?

  To manage mushrooms, getting air movement in the soil is necessary to break up the existing dense fungal mat of mycelia.  Remove cores at least ¼” to 1 inch in diameter to a depth slightly deeper than the fungal mat.  Determine the depth of this mat with a trowel or shovel.  Love Your Soil or...