The nonvolatile terpene antiherbivore compounds are the limonoids, a group of triterpenes (C30) well known as bitter substances in citrus fruit.

The most powerful deterrent to insect feeding known is azadirachtin

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#Id: 9758

#XL - R Botany

Plant species produce cysteine protease, which disrupt the

peritrophic membrane that protects the gut epithelium of many insects.

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#Id: 5519

#XL - T Zoology

Age-specific fertility and survivorship data help determine net reproductive rate (R₀).

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#Id: 9526

#XL - R Botany

Chewing insects, such as caterpillars, grasshoppers, and beetles, cause the most significant damage to plants. 

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#Id: 5369

#XL - T Zoology

Quadrats - A square frame often, but not always, measuring 50 × 50 cm. 

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#Id: 8558

#XL - Q Biochemistry

Similarly, if the inhibitor binds to a different site from the substrate and reduces the affinity of the enzyme for the substrate without altering the reaction characteristics of that substrate which does bind, then hyperbolic competitive inhibition results