A Wisdom Archive on herbicides

Weed control, a botanical component of pest control, stops weeds from reaching a mature stage of growth when they could be harmful to domesticated plants, sometimes livestocks, by using manual techniques including soil cultivation, mulching and herbicides. Prevention of weeds from growing is desirable, but often difficult to achieve, due to the resilient fertilization and growth patterns of weeds. Weed control - The effects of weeds on other plants. Luther Burbank has been quoted as the source of the saying ... Including:

• Weed control - The effects of weeds on other plants
• Weed control - Methods
• Weed control - Stale seed bed technique
• Weed control - Use of herbicides
• Weed control - Wood
• Weed control - UK Legislation concerning weeds
• Weed control - Homemade Weed Killer Recipe
• Weed control - External link
• Weed control - Reference

Read more here: » Weed control: Encyclopedia - Weed control

Besides those kinds of weeds which are of an herbaceous nature, there are others which are woody, and grow to a very considerable size; such as broom, furze and thorns. The first may be destroyed by frequent ploughing and harrowing, in the same manner as other perennial weeds are. Another method of destroying broom is by pasturing the field where it grows with grazers. The best method of extirpating furze is to set fire to it in frosty weather, for frost has the effect of withering and making them burn readily. The stumps must then be ...

Read more here: » Weed control: Encyclopedia II - Weed control - Wood

Health Foods - Foods purported to be produced without the use of chemical fertilizers, herbicides or pesticides sprays and sold without the addition of chemical additives (preservatives, filters, article flavoring or coloring agents). Many are claimed to be natural (ie, not containing added chemicals) and purported to be healthier than the usual foods.

 
(See also: Health Foods, Alternative Health, Body Mind and Soul )

ORGANIC FOOD
Is cultivated and processed without the use of synthetic fertilizers, pesticides (insecticides and herbicides), preservatives, colorings, artificial additives or radiation. Certified Organically grown food is such: that has been grown on land where synthetic fertilizers or pesticides have not been used for five years; that has been inspected by a licensed independent third party; and that the product is supported by documentation on soil tests, a statement of organic intent, and an affidavit of confirmation.

 
(See also: ORGANIC FOOD, Alternative Health, Holistic Health, Body Mind and Soul )

Read more here: » Agent: Encyclopedia - Agent

A biocide is a chemical substance, such as pesticides, which can be fungicides, herbicides, insecticides, miticides, or rodenticides, etc., capable of killing different forms of living organisms used in fields such as agriculture, forestry, and mosquito control. Biocides can also be added to other materials (typically liquids) to protect the material from biological infestation and growth. For example, certain types of quats can be added to pool water or industrial water systems to act as an algicide, protecting the wate ... Including:

• Biocide - External link

Read more here: » Biocide: Encyclopedia - Biocide

The Zadoks scale is a cereal development scale proposed by the Dutch phytopathologist Jan C. Zadoks that is widely used in cereal research and agriculture. Knowing the stages of development of a crop is critical in many management decisions that growers make. They are represented on a scale from 10 to 92. For example, in some countries, nitrogen and herbicide applications must be completed during the tillering stage. In France, the recommendation for the first nitrogen application on wheat is 6 weeks before Z30, with the second ... Including:

• Zadoks scale - Literature
• Zadoks scale - External links

Read more here: » Zadoks scale: Encyclopedia - Zadoks scale

Biological warfare can also specifically target plants to destroy crops or defoliate vegetation. The United States and Britain discovered plant growth regulators (i.e., herbicides) during the Second World War, and initiated a Herbicidal Warfare program that was eventually used in Malaya and Vietnam in counter insurgency. Though herbicides are chemicals, they are often grouped with biological warfare as bioregulators in a similar manner as biotoxins. The United States developed an anti-crop capability during the Cold War that used plan ...

Read more here: » Biological warfare: Encyclopedia II - Biological warfare - Attacking Crops & Animals

Agent Orange is a roughly 1:1 mixture of the two phenoxy herbicides in ester form, 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). These herbicides were developed during the 1940s by independent teams in England and the United States for use in controlling broad-leaf plants. Phenoxy agents work by mimicking a plant growth hormone, indoleacetic acid (IAA). When sprayed on broad-leaf plants they induce rapid, uncontrolled growth, eventually killing it. When sprayed on crops such as wheat or corn, it sele ...

Read more here: » Agent Orange: Encyclopedia II - Agent Orange - Description

During the Vietnam War, the US instituted a massive herbicidal program that ran from 1961 through 1971. The aim of the program was two-fold, one to destroy the "cover" provided by the jungle-like forest, and another to deny food to the enemy. A variety of chemicals, fifteen in total, were tested or used operationally during this program. The primary broad-leaf herbicides sprayed during the "testing" phase of the program between 1962 and 1964 were Agent Orange, Agent Purple and Agent White. The chemicals themselves had no color, the na ...

Read more here: » Agent Orange: Encyclopedia II - Agent Orange - Use in Vietnam