MICROBIAL AND BIOLOGICAL INSECTICIDES

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MICROBIAL AND BIOLOGICAL INSECTICIDES
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• Koopert slow release bags
• 4 week release
• 0.10 per pot

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Bacillus thuringiensis (Bt)

• Bacteria produces protein toxic to specific
  insects
• Genetically Modified Organisms
• Plants modified to produce this protein
• Corn, Soybeans, etc

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Bacillus thuringiensis (Bt)

• Bt var. kurstaki kills caterpillars
• Dipel
• Must be eaten by pest

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Bacillus thuringiensis (Bt)

• Bt var. israeliensis kills mosquito larvae
• Product put in water

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Nematodes

• Microscopic worms
• BioSafe, Double Death products
• Steinernema and Heterorhabditis genus
• Predatory nematodes on grubs, caterpillars, thrips

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Nematodes
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Trichoderma fungus

• Lives on root exudates
• Prevents root disease
• RootShield

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INSECT GROWTH REGULATORS

• IGR
• Mimic insect hormones
• Prevent molting
• Control immature stage only

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Spinosad

• Derived from bacteria
• Conserve
• Cause insect muscles to continuously fire

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Diatomaceous earth

• Crushed fossils
• Cut insects walking over it
• Dehydrate

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INSECTICIDAL SOAP

• Soft body insects
• Disrupts cells, removes cuticle, dry out
• Must contact insect, no residual
• Can burn plants

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Neem Oil

• Insect REPELLENT
• Extracted from neem tree
• Also medicinal, cosmetic, and other safe uses for
  humans

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HORTICULTURE OIL

• Soft body insects
• Smothers insects
• Can penetrate scale and kill
• Apply when less than 90 F