Certified Arborist Test 2025 – 400 Free Practice Questions to Pass the Exam

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What is Bacillus thuringiensis commonly used for?

Controlling soil erosion

As a microbial pesticide against insect pests

Bacillus thuringiensis, often abbreviated as Bt, is renowned for its role as a microbial pesticide. Specifically, it is a bacterium that produces toxins effective against certain insect pests, particularly caterpillars and some beetles. These toxins are harmful when ingested by target insects, disrupting their digestive systems and leading to their death. This natural method of pest control has gained popularity as an alternative to synthetic chemical pesticides, making it a favored choice among organic farmers and environmentally conscious growers.

The other options do not accurately reflect the primary use of Bacillus thuringiensis. It is not typically associated with controlling soil erosion, providing fertilizer for plant growth, or functioning as a herbicide for weed control. Each of these areas requires different approaches and products that are distinct from the action and purpose of Bt.

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As a fertilizer for plant growth

As a herbicide for weed control

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