Cabbage, Brussels Sprouts, Broccoli – Pest Control – Know Your Enemy

Control of Cole Crop Insects

All of the caterpillars (larvae of moths and butterflies) infesting cole crops can be effectively controlled using one of the Bacillus thuringiensis (B.t.) products, or with spinosad or pyrethrin. B.t. is a microbial insecticide that contains spores of these bacteria and is used to control caterpillars when they feed on leaves containing the spores.

B.t. works best while the caterpillars are small. B.t., spinosad and pyrethrin are all less toxic control options.

Aphids may be controlled by using a commercially prepared insecticidal soap product, neem oil extract or pyrethrin, which are all less toxic control options.

Harlequin bugs, stink bugs, flea beetles and whiteflies, as well as aphids and caterpillars may be controlled using cyfluthrin, cyhalothrin or bifenthrin. Bifenthrin is not labeled for use on Brussel sprouts.
Read and follow all label directions on recommended pesticides.
Also note the pre-harvest interval for each product, which is the time to wait between spraying and harvesting.

Table 1. Insecticides for Insect Pests of Cole Crops
Insect Pest Cabbage Cauliflower Broccoli Brussels
Sprouts
Aphids permethrin permethrin permethrin permethrin
bifenthrin bifenthrin bifenthrin  
cyhalothrin cyhalothrin cyhalothrin cyhalothrin
insecticidal soap insecticidal soap insecticidal soap insecticidal soap
Neem extract Neem extract Neem extract Neem extract
pyrethrin pyrethrin pyrethrin pyrethrin
Caterpillars Bacillus thuringiensis (B.t.)
Bacillus thuringiensis (B.t.) Bacillus thuringiensis (B.t.) Bacillus thuringiensis (B.t.)
permethrin permethrin permethrin permethrin
bifenthrin bifenthrin bifenthrin  
cyfluthrin cyfluthrin cyfluthrin cyfluthrin
spinosad spinosad spinosad spinosad
pyrethrin pyrethrin pyrethrin pyrethrin
Harlequin Bugs permethrin permethrin permethrin permethrin
bifenthrin bifenthrin bifenthrin  
cyfluthrin cyfluthrin cyfluthrin cyfluthrin
Flea Beetles carbaryl carbaryl carbaryl carbaryl
permethrin permethrin permethrin permethrin
bifenthrin bifenthrin bifenthrin  
cyfluthrin cyfluthrin cyfluthrin cyfluthrin
cyhalothrin cyhalothrin cyhalothrin cyhalothrin
Whiteflies cyfluthrin cyfluthrin cyfluthrin cyfluthrin
bifenthrin bifenthrin bifenthrin  
cyhalothrin cyhalothrin cyhalothrin cyhalothrin
Table 2. Insecticide Products Labeled to Control Cole Crop Insect Pests
Insecticides & Fungicides Examples of Brand Names & Products
Note: The PHI (pre-harvest interval) is time to wait in days between spraying and harvesting, and is listed after each active ingredient above.
*RTS=Ready to spray (hose-end applicator).
Bacillus thuringiensis (B.t.)
(0 days PHI)
American Brand Thuricide Concentrate
Bonide Thuricide Bt Concentrate
Green Light Worm Killer Concentrate
Safer Caterpillar Killer Concentrate
Southern Ag Thuricide Bt Caterpillar Control Concentrate
Bifenthrin (7 days PHI) Ortho Bug-B-Gon MAX Lawn & Garden Insect  Killer Concentrate
Carbaryl (1 day PHI) Garden Tech Sevin Bug Killer Concentrate
Ferti-lome Liquid Carbaryl Garden Spray
Cyfluthrin (1 day PHI) Bayer Advanced Garden Power Force Multi Insect Killer Concentrate
Bonide Beetle Killer RTS*
Bonide Caterpillar Killer RTS*
Cyhalothrin (1 day PHI) Spectracide Triazicide Once & Done Insect Killer Concentrate
Insecticidal Soap (0 day PHI) Natural Guard
Insecticidal Soap Concentrate
Bonide Multi-Purpose
Insect Control Soap Concentrate
Safer Brand Insect
Killer Soap Concentrate
Schultz Garden Safe
Insecticidal Soap Concentrate
Epsoma Earth Tone
Insecticidal Soap Concentrate
Bonide Bon-Neem Insecticidal Soap Concentrate (with
Neem Oil)
Neem Oil  (0 day PHI) Ferti-lome Triple Action Plus: with Neem Oil Concentrate
(with Pyrethrin)
Ferti-lome Rose, Flower & Vegetable Spray Concentrate
Ferti-lome Fruit Tree Spray Concentrate (with Pyrethrin)
Schultz Garden Safe Fungicide 3
Green Light Neem Concentrate
Green Light Rose Defense Concentrate
Green Light Fruit Tree Spray Concentrate (with Pyrethrin)
Southern Ag Triple Action Neem Oil Concentrate
Monterey 70% Neem Oil
Fungicide/Insecticide/Miticide Concentrate
Permethrin (1 day PHI) Bonide Eight Insect
Control Vegetable Fruit & Flower Concentrate
Bonide Borer-Miner
Killer Concentrate
Bonide Total Pest Control
– Outdoor Concentrate
Hi-Yield Kill-A-Bug
II Concentrate
Southern Ag Permetrol Rose Flower Fruit &
Vegetable Insecticide
Pyrethrin (0 day PHI) Southern Ag Natural
Pyrethrin Concentrate
Spectracide Garden
Insect Killer Concentrate; & RTS*
Bonide Garden Insect Spray Concentrate
Spinosad (1 day PHI) Bonide Captain
Jack’s Dead Bug Brew Concentrate; & RTS*
Bonide Colorado Beetle Beater Concentrate
Green Light Lawn & Garden Spray with Spinosad Concentrate
Southern Ag Conserve Naturalyte Insect Control Concentrate
Monterey Garden Insect Spray Concentrate

Why is common sense so uncommon?
Don’t be Shy. Leave me your comment(s)

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2 responses to “Cabbage, Brussels Sprouts, Broccoli – Pest Control – Know Your Enemy

  1. Thank you for all the great info! Of all the good stuff you show to kill bad bugs, can you tell me which are organic or natural? We don’t use any chemicals in our gardens, but are always open to new natural methods!

    Liked by 1 person

    • insecticidal soap
      neem oil
      Bt. Bacillus thuringiensis
      also make your own insect soap using Blue Dawn (must be Original Blue Dawn) dish soap.
      To repel insects from your houseplants, including aphids, spider mites and mealy bugs. Put a drop of Dawn Dishwashing Liquid in a spray bottle, fill the rest of the bottle with water, shake well, and mist your household plants with the soapy water.
      Ant killer/repelent spray counter-tops, cupboards and any other area where you see ants with a solution of Dawn and water. Wipe dry.
      Happy Gardening

      Like

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