Spraying Citrus Trees

Spraying is important to the survival of your plants. To handle potential diseases and pests, reference the guidelines below to know what you should spray, and when you should use it.

NOTE: This is part 9 in a series of 11 articles. For a complete background on how to grow citrus trees, we recommend starting from the beginning.

Before you begin, read and follow all instructions on labels.

What To Spray

At the First Sign of:

  • Monterey Horticultural Oil for scale insects, red spider mites, mealybugs and whitefly larvae.
  • Safer® Brand Insect Killing Soap for mites, mealybugs, scale insects, thrips and whitefly.
  • Hi-Yield® Vegetable & Ornamental Insect Control for thrips (to prevent fruit scarring from thrips, treat when fruit if marble size) (not for use on large trees – taller than 6 feet).

By Tree

Orange, Lemon, Lime

At the First Sign of:

  • Monterey Fruit Tree Spray Plus, Ferti-lome® Triple Action for mites, whiteflies, mealybugs, scale insects and thrips.
  • GardenTech® Sevin® Concentrate Bug Killer for scale insects (not for use on large trees – taller than 10 feet).

Orange

At the First Sign of:

  • Natural Guard® Caterpillar Killer Spray w/BT for leafroller and orange dog caterpillars.

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