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Pest Control
What's bugging you? How do you get rid of those pesky insects and pests? This is the category to take a swat at those creepy, crawly unwelcome invaders.
2,179 Questions
Very dangerous. causes kidney/liver disease and kidney/liver cancer and leads up to death. was banned in 1972 by the US Secretary of agriculture, Richard Milhous Nixon and the World Health Orginization. Cased by inhaling the chemical.
What is DDT that is used in pesticide?
DDT is an artificial insecticide prepared by the reaction of chloral with chlorobenzene in the presence of sulfuric acid. It was first made in 1874, but its insecticidal action was discovered in 1939 by Paul Hermann Muller, a Swiss chemist.
The expanded form of DDT is dichlorodiphenyltrichloroethane. It is an organochloride pest repellent that has been banned in the United States due to the great damage it caused to large birds of prey.
What is DDT and why was it banned in the US?
There was many health risks with bald eagles getting poisoned by it getting into the water supply. The fish in the water got poisined and the Bald Eagles ate the fish, they did NOT die though.
What are the uses of hydrated lime?
Hydrated lime or slaked lime is calcium hydroxide (Ca(OH)2)
Calcium hydroxide is commonly used to prepare lime mortar.
One significant application of calcium hydroxide is as a flocculant, in water and sewage treatment. It forms a fluffy charged solid that aids in the removal of smaller particles from water, resulting in a clearer product. This application is enabled by the low cost and low toxicity of calcium hydroxide. It is also used in fresh-water treatment for raising the pH of the water so that pipes will not corrode where the base water is acidic, because it is self-regulating and does not raise the pH too much.
It is also used in the preparation of ammonia gas (NH3), using the following reaction:
Ca(OH)2 + 2 NH4Cl → 2 NH3 + CaCl2 + 2 H2O
Another large application is in the paper industry, where it is an intermediate in the reaction in the production of sodium hydroxide. This conversion is part of the causticizing step in the Kraft process for making pulp.[8] In the causticizing operation, burned lime is added to green liquor, which is a solution primarily of sodium carbonate and sodium sulfate produced by dissolving smelt, which is the molten form of these chemicals from the recovery furnace.
Food industry
Because of its low toxicity and the mildness of its basic properties, slaked lime is widely used in the food industry:
In USDA certified food production in plants and livestock[10]
To clarify raw juice from sugarcane or sugar beets in the sugar industry, (see carbonatation)
To process water for alcoholic beverages and soft drinks
Pickle cucumbers and other foods
To make Chinese century eggs
In maize preparation: removes the cellulose hull of maize kernels (see nixtamalization)
To clear a brine of carbonates of calcium and magnesium in the manufacture of salt for food and pharmaceutical uses
In fortifying (Ca supplement) fruit drinks, such as orange juice, and infant formula
As a digestive aid (called Choona, used in India in paan, a mixture of areca nuts, calcium hydroxide and a variety of seeds wrapped in betel leaves)
As a substitute for baking soda in making papadam
In the removal of carbon dioxide from controlled atmosphere produce storage rooms
Native American uses
Dry untreated maize (left), and treated maize (right) after boiling in water with calcium hydroxide (15 ml, or 1 tbsp, lime for 500 g of corn) for 15 minutes
In Spanish, calcium hydroxide is called cal. Maize cooked with cal (in a process of nixtamalization) becomes hominy (nixtamal), which significantly increases the bioavailability of niacin (vitamin B3), and is also considered tastier and easier to digest.
In chewing coca leaves, calcium hydroxide is usually chewed alongside to keep the alkaloid stimulants chemically available for absorption by the body. Similarly, Native Americans traditionally chewed tobacco leaves with calcium hydroxide derived from burnt mollusc shells to enhance the effects. It has also been used by some indigenous American tribes as an ingredient in yopo, a psychedelic snuff prepared from the beans of some Anadenanthera species.[11]
Asian uses
Calcium hydroxide is typically added to a bundle of areca nut and betel leaf called "paan" to keep the alkaloid stimulants chemically available to enter the bloodstream via sublingual absorption.
It is used in making naswar (also known as nass or niswar), a type of dipping tobacco made from fresh tobacco leaves, calcium hydroxide (chuna or soon), and wood ash. It is consumed most in the Pathan diaspora, Afghanistan, Pakistan, India and Bangladesh. Villagers also use calcium hydroxide to paint their mud houses in Afghanistan, Pakistan and India.
DDT was used in the later 1950's and early 1960's for the erradication of mosquitoes, and other insects. It pretty much cured the Malaria in America and a great deal of the world. It was banned and now once again we are having a problem with Malaria and other insect borne infections.
Why would water plants contain DDT?
Some of the pesticides sprayed on farm crops wash off in the rain and get into the waterways. The water plants absorb the pesticides.
What insecticide kills bugs on plants?
Contact, systemic, and target controls are the insecticides which kill bugs on plants. The controls may be non-organic (made in labs with chemicals to form synthetics) or organic (made from animals or plants). Labels tell the intended (target) audience which may be eliminated either by contact -- because the schedule involves the plant's exteriors -- or systemically -- because the treatment is taken into the plant's insides.
Why might there be problems with spraying ponds and lakes with ddt?
A main one is that it caused thin-walled (devastatingly fragile) bird egg-shells.
DDT is not soluble in water.
What pest was cocnuts threatened by in Belize?
Lethal yellowing first detected in Belize in the 90's cause by plant hoppers which spread a virus
How can you get rid of moss in your monoblock?
To remove moss from your monoblock, start by scrubbing the surface with a stiff brush and a mixture of water and dish soap to dislodge the moss. For more stubborn growth, a solution of vinegar or bleach diluted in water can be applied, but be sure to rinse thoroughly afterward. Additionally, improving drainage and sunlight exposure can help prevent moss from returning. Regular maintenance, such as cleaning and sealing the surface, will also reduce moss buildup over time.
How do you kill cabbage worms?
A friend of mine suggested me to dip the veggies in salt water for 3 minutes. I did it the next time I bought cabbage, and guess what IT WORKS!
After a minute or so, the worms (2 big ones) were floating dead on the surface. I rinsed my cabbage thoroughly n finally they were completely safe for consumption..
Why do bugs get into spices even when they are stored in tight containers?
Sounds like the contamination occurred prior to packaging.
How do you treat lime tree for aphids?
Introduction of and support for natural predators and use of botanical and chemical controls are ways to treat lime trees for aphids. Treatment by natural enemies focuses upon such voracious aphid-eaters as ladybugs and syrphid flies. Botanical controls include horticultural oils against eggs and insecticidal soaps against immature and mature stages whereas chemical controls at their eco-friendliest list as active ingredients pyrethroids.
