Name the pest or the disease causing organism that each biocontrol agent controls…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the pest or the disease causing organism that each biocontrol agent controls.
- The ladybird.
- The dragonfly.
- The dried spores of Bacillus thuringiensis.
- Trichoderma.
- A baculovirus.
Need a reminder? The key ideaShow
Biocontrol uses living organisms. Ladybird: aphids. Dragonfly: mosquitoes. Bacillus thuringiensis: caterpillars, by the toxin that is released in the gut of the larva. Trichoderma: plant pathogens. Baculoviruses: insects, narrow spectrum. If a share of the larvae die each day, a number falls to after days. An average is the total divided by the number of plants.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Aphids.
Step 2. (b) Mosquitoes.
Step 3. (c) The larvae of butterflies and moths, which are caterpillars.
Step 4. (d) Several plant pathogens, which are disease causing organisms of plants.
Step 5. (e) Insects and other arthropods, of a few kinds only.
Answer: (a) aphids; (b) mosquitoes; (c) caterpillars; (d) plant pathogens; (e) insects and other arthropods.
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