Weed Control - Chemical, Mechanical, Herbicides

African Organic Agriculture Training Manual: Pest, Disease and Weed Management

Learning targets for farmers: 1) Distinguish between beneficial organisms and pests, diseases and weeds 2) Develop awareness of the most important organisms limiting production and storage of agricultural products 3) Understand why management of pests, diseases and weeds should not be limited to...
Eric Wyss
Brian Ssebunya
FiBL, Research Institute of Organic Agriculture

Organic Weed Management

it is the grower’s task to make sure that the weeds present do not exceed damaging thresholds that limit crop yields. In this chapter, we will address practical weed management techniques for the organic producer. Weed management for organic crop production falls into two categories:...
Jeff Gunsolus
Don Wyse
Kristine Moncada
Carmen Fernholz
University of Minnesota

Weed Biology

The biggest challenge that organic producers face today is weed management. This chapter is devoted to weed biology, which is an aspect of weeds necessary in understanding how to manage them. Weeds become a farming risk when they reduce crop yields or lower crop quality. Risks due to weeds include...
Sheri Huerd
Kristine Moncada
University of Minnesota Extension

2011 Midwest Tree Fruit Spray Guide

  Pest management recommendations provide up-to-date information on pesticides and their applicability to your problem. We suggest that you use this information to set up your own spray program. You should include space for records in the program, such as materials used; date of application;...
University of Illinois Extension
Purdue Extension
Iowa State University Extension
Kansas State University Agricultural Experiment Station and Cooperative Extension Service
University of Kentucky Cooperative Extension Service
University of Missouri
Missouri State University
Ohio State University Extension
University of Wisconsin Cooperative Extension Service
Midwest Fruit Workers Group

Use of solar energy (solarization) for weed control in greenhouse soil for ornamental crops

  Solarization using 50 μm thick transparent polyethylene sheets for 3, 10, 22, 32 and 42 days was carried out in the greenhouse of a company which produces ornamental crops, in Jose C. Paz, Province of Buenos Aires, Argentina. Populations of the annual summer weeds Amaranthus hybridus and...
M. Moya
G. Furukawa
New Zealand Plant Protection

Midwest Commercial Small Fruit and Grape Spray Guide

  Commercial fruit production has become a highly skilled, technical profession. Concerns about pesticide residues, operator risks, and the environment dictate that all fruit growers exercise extreme caution in the use of all pesticides, and indeed, all chemicals. The Environmental Protection...
Bruce Bordelon
Mike Ellis
Celeste Welty
Midwest Fruit Workers Group

Assessing ground covers in a newly planted apple orchard

  Three low growing ground-cover species, dichondra (Dichondra micrantha), hydrocotyle (Hydrocotyle heteromeria) and a creeping red fescue (Festuca rubra)/white clover (Trifolium repens) mixture were compared to bark mulch and herbicide in a newly planted apple orchard for their ability to...
M.J. Hartley
A. Rahman
K.C. Harrington
T.K. James
New Zealand Plant Protection

Long term ground cover options for apple orchards

  A trial was established in a new Hawke's Bay apple orchard in September 1998 to determine how well various ground cover treatments could control weed competition and infl uence tree production. Results are presented after six growing seasons. Competition during the fi rst growing season...
K.C. Harrington
M.J. Hartley
A. Rahman
T.K. James
New Zealand Plant Protection

Pesticides and Formulation Technology

  There is a seemingly endless variety of pesticide products sold in the urban and agricultural marketplace. Casual observation in any hardware store or lawn and garden center will reveal that variations extend even to products that are manufactured by the same chemical company and contain the...
Andrew Martin
Fred Whitford
Tom Jordan
Purdue University Cooperative Extension Service

Herbicide Resistance: Definition and Management Strategies

  A herbicide ceases to be a useful tool for farmers when its target weeds develop resistance to its effects. This publication helps you understand resistance: what causes it, and how you can slow or prevent its development. Herbicide resistance is the inherited ability of a plant ot survive...
Timothy S. Prather
Joseph M. Ditomaso
Jodie S. Holt
University of California Agriculture and Natural Resources