Sometimes insects saliva in plants stimulates the plants to produce hormones that result in abnormal growth such as gall production. Insects then can use this abnormal growth to their advantage. Provide complete and clear answers for the following questions. Explain the concept of degree-days with respect to insects . They accumulate on a per day basis.
Insects are cold-blooded.
This means that rate of development is directly related to temperature. It is unique for each insect, species but also measurable for each insect species. This usually results in a positive linear relationship between temperature and insect development rate. The inverse of the slope of the linear relationship reflected in a regression equation technically equals the number of degree days it takes for the median of a population to reach the next lifestage. Describe how you would calculate degree-day accumulation in the field.