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Wain, R. L. – Education in Chemistry, 1979
Presented is a brief review of plant growth substances and selective herbicides. Topics include herbicidal selectivity and inhibitors. (BB)
Descriptors: Agricultural Chemical Occupations, Agriculture, Chemistry, Herbicides
Michigan State Dept. of Natural Resources, Lansing. – 1977
Aquatic plants can be divided into two types: algae and macrophytes. The goal of aquatic plant management is to maintain a proper balance of plants within a lake and still retain the lake's recreational and economic importance. Aquatic plant management programs have two phases: long-term management (nutrient control), and short-term management…
Descriptors: Botany, Ecology, Environment, Herbicides
Nuss, James Robert, Jr. – 1975
This agriculture extension service publication from Pennsylvania State University discusses the control of common grass and broadleaf weeds through the use of mulches and herbicides. The section on mulches discusses the different types of mulching materials, their advantages and disadvantages, herbicide-mulch combinations, and lists source of…
Descriptors: Agricultural Trends, Extension Education, Herbicides, Landscaping
Hartwig, Nathan L. – 1975
This agriculture extension service publication from Pennsylvania State University examines agronomic weed problems and control. Contents include a listing of the characteristics of weeds, a section on herbicides, and a section on the important weeds of agronomic crops in Pennsylvania. The herbicide section discusses systemic herbicides, contact…
Descriptors: Agricultural Education, Agronomy, Extension Education, Field Crops
Peer reviewed Peer reviewed
Davis, Donald E. – BioScience, 1979
The history of the development of the herbicide industry, particularly the phenoxy herbicides 2, 4-D, and 2, 4, 5-T,is presented. (BB)
Descriptors: Agriculture, Environmental Education, Herbicides, Industry
Peer reviewed Peer reviewed
Galston, Arthur W. – BioScience, 1979
The metabolism and toxicology of the herbicide 2, 4, 5-T are reviewed. (BB)
Descriptors: Agricultural Chemical Occupations, Agriculture, Biochemistry, Environmental Education
Hesser, R. B.; And Others – 1976
This agriculture extension service publication from Pennsylvania State University is a handbook for the water body manager. The bulk of the contents deals with aquatic plant control. The different types of aquatic plants, their reproduction and growth, and their role in the ecology of the water body are introduced in this main section. Also, the…
Descriptors: Biology, Ecology, Environmental Education, Extension Education
Hartwig, Nathan L. – 1976
This agriculture extension service publication from Pennsylvania State University is an introduction to weed control and herbicide use. An initial discussion of the characteristics of weeds includes scientific naming, weed competition with crops, weed dispersal and dormancy, and conditions affecting weed seed germination. The main body of the…
Descriptors: Agricultural Education, Agricultural Safety, Agricultural Trends, Chemical Nomenclature
Wingard, R. G.; And Others – 1977
This publication, produced by the Pennsylvania Cooperative Extension Service, is a non-technical guide to chemical control of aquatic vegetation. The purpose of this circular is to aid the land owner or manager in managing ponds, streams, and other water bodies for desired uses by managing the vegetation in, on, and around the water. Among the…
Descriptors: Environmental Education, Extension Education, Herbicides, Land Use