Practical Applications of Herbicide Physiology
Date of this Version
Plant and Soil Sciences eLibrary (PASSeL) Lesson
This lesson has been assigned University of Nebraska-Lincoln Cooperative Extension Journal Series Number 1021
This lesson will focus on the impact of herbicide and plant characteristics important in determining herbicide performance. Visual images will be used to illustrate several principles including herbicide site of uptake, translocation, site of action sensitivity, and environmental effects on herbicide performance. This information provides a basis for maximizing herbicide performance.
This lesson will examine the basic requirements for herbicide performance. This lesson will examine how herbicide and plant characteristics interact as a basis for explaining herbicide performance. The application requirements of both soil and foliar active herbicides will be examined in relation to their characteristics. The influence of environmental conditions on herbicide performance, both weed control and crop injury, will be examined.
- Understand the influence of herbicide site of absorption and translocation characteristics on herbicide performance.
- Explain the effects of temperature and moisture on herbicide activity.
- Understand the mechanisms giving rise to herbicide selectivity.
- Understand the influence of weed seedling density on herbicide effectiveness.
- Explain the effect of weed size and age on sensitivity to herbicides.