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  • Writer's pictureSame Day Dumpster

Did you know? UTU Extension has a year-round free Almanac for gardening tips and more!

Updated: May 19

Gardener's Almanac Monthly Gardening Checklist

September Tips & Checklist:

  • Beginning in early August, plant selected cool-season vegetables for a fall harvest.

  • Deadhead (cut off) spent blossoms of perennial and annual flowers.

  • Deep water established trees and shrubs about once per month during the heat of summer.

  • Turfgrass only needs 1 ½-2 inches of irrigation per week. See irrigation needs in your area.

Pests and Problems:

  • If tomatoes are not producing, one common reason could be due to hot weather (95°F and above) which causes flower abortion.

  • Blossom end rot (black sunken areas on the end of tomatoes) is common and is caused by uneven watering.

  • Check under the leaves of pumpkins, melons, and squash plants for squash bugs.

  • Treat for Corn earworm when the corn’s silk is approximately ½ long.

  • Spider mites prefer dry, hot weather and affect many plants. Treat Spider mites using “softer” solutions such as spraying them with a hard stream of water or insecticidal soap.

  • Spider mites can be identified by shaking leaves over a white piece of paper. If the small specs move…mites.

  • Control Codling moth in apples and pears to reduce wormy fruit. For specific timing see our Utah Pests Advisories.

  • Historically, control of the Greater Peach Tree borer in peaches, nectarines, and apricots occurs on the first of July. However, for specific timing see our Utah Pests Advisories.

  • Submit a sample to the Utah Plant Pest Diagnostic Lab (UPPDL).

  • Watch for symptoms of turfgrass diseases.

  • Monitor for damaging turfgrass insects.

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