Biological Pest Control - PowerPoint PPT Presentation


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Biological Pest Control


Biological Pest Control Or BPC for short – PowerPoint PPT presentation

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Date added: 23 August 2019
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Title: Biological Pest Control

Biological Pest Control
  • Or BPC for short

Biological Pest Control--BPC
  • What is it?
  • Biological Pest Control is a way of controlling
    pests and diseases in agriculture that relies on
    natural predation rather than chemicals.

How does it work?
  • Biological pest control works to create a system
    where the insects referred to as pests and the
    things that cause diseases are kept at manageable
    levels using natural means.
  • For example Introducing a predator to a pest, or
    growing plants that keep particular insects away.

Let me introducethe predators
  • LADYBUGSThe larva will eat more than their fare
    share of aphids, blackflies, caterpillars and
    mites. (Not really lady-like)
  • DragonfliesThey eat mosquitoes and mosquito
    larva. Very important in the control of mosquito
  • Parasitic WaspsThey lay their eggs IN many
    common pests. The eggs hatch and eat the pests

Here they are
A Wasp and its prey
Plants keep away the insects?
  • How can this be?
  • Masking/shielding the crop plants from pests
  • Producing smells that confuse and deter pests.
  • Acting as trap plants by providing an alluring
    food that entices pests away from crops.
  • Serving as nursery plants, providing breeding
    grounds for beneficial insects.

Did you know
  • Basil Repels flies and mosquitoes.
  • Catnip Deters flea beetle.
  • Garlic Deters Japanese beetle.
  • Horseradish Deters potato bugs.
  • Marigold The workhorse of pest deterrents.
    Discourages Mexian bean beetles, nematodes and
  • Mint Deters white cabbage moth, ants.
  • Nasturium Deters aphids, squash bugs and
    striped pumpkin beetles.

Did you know Contd
  • Pot Marigold Deters asparagus beetles, tomato
    worm, and general garden pests.
  • Peppermint Repels the white cabbage butterfly.
  • Rosemary Deters cabbage moth, bean beetles and
    carrot fly.
  • Sage Deters cabbage moth and carrot fly.
  • Southern Wood Deters cabbage moth.
  • Summer Savory Deters bean beetles.
  • Tansy Deters flying insects, Japanese beetles,
    striped cucumber beetles, squash bugs and ants.
  • Thyme Deters cabbage worm.
  • Wormwood Deters animals from garden.

(No Transcript)
Why Use BPC?
  • Benefits
  • This is a very cost effective way to prevent
    pests. (Cheaper than pesticides).
  • No chemicals will be used, therefore, no
  • No chemicalsno health problems.

Why not BPC?
  • The negatives
  • You must spend more time trying to control the
    pests. (More time spentless money)
  • Research must be done to find the right
    bugs/plants for the job.
  • If the wrong insects/plants are used, then you
    can end up seriously harming the ecosystem.

Harming the Ecosystem
  • In Hawaii, the mongoose was imported to stop the
    spread of rodents.
  • The mongoose ate many rodents, but ate other
    things too(not good.)

Lady Bug vs. Preying Mantis
  • What would you choose?
  • You are a farmer in Nova Scotia and you have been
    having problems with aphids. You have decided to
    use BPC instead of chemicals to help the aphid
  • You must choose, based on the information
    provided, which predator will be the best for you.