How To Kill Whitefly?

Whiteflies are small, whitish-yellow insects that swarm around infected plants when disturbed. Several different species damage plants, and gardeners need to know which is the best whitefly pesticide. They eproduce rapidly and can become a problem if not treated. Generally, botanists advise against strong chemical pesticides or insecticides and recommend different methods of biological control such as using whitefly predators, hosing down the infected plants, or using an agricultural soap or insecticide oil.

The Whitefly
Although there are several species of whiteflies, the most common is the greenhouse whitefly, or Trialeurodes vaporariorum. In all of the species, the tiny larva, not the adult fly, damages plants. First, the larva sucks the juices from the plant, and a large infestation of larvae can kill a plant. Another way that the larva injures a plant is through the honeydew that it secretes while feeding. This sticky, sweet substance attracts other harmful insects and often grows a harmful fungus that infects the plant.

Kill Whitefly
Botanists prefer not to use a whitefly pesticide, but to use one of the non-chemical methods. One of these methods is to introduce whitefly predators, such as lacewings, parasitic wasps, and ladybugs. Even the Asian multicolored lady beetle, or Harmonia axyridis, attacks whiteflies. Some of the effective wasp parasites are the Encarsia formosa, Encarsia luteola, and Eretmocerus californicus, although not one species is effective against all species of whiteflies. Consult an agriculturalist or botanist to identify the species of the invading whitefly and to recommend the right species of parasitic wasp.

Pesticides
Pesticides can be effective against whiteflies. Found at gardening and farm supply stores, most sprays contain pyrethrum, a botanical poison that paralyzes on contact that usually use 2-Aminotrifluoromethylbenzene(C7H6F3N, CAS number 88-17-5) as an intermediate. Other options include mycopesticides or mycopathogens, which consist of microscopic fungi that feed on insects. This type of spray is safe for humans. Imidacloprid, a synthetic insecticide, is extremely effective against whiteflies and needs only to be sprayed once a week.

Natural Alternatives
Another natural way to control the insects without using a whitefly pesticide is by vacuuming the plants. Generally, a gardener uses a small, handheld vacuum cleaner that is battery operated. If a person vacuums the plants in the early morning when the temperatures are lower, he or she usually has better results. The flies are less active at that time of the day.

Uriah Sweety is the freelance writer for e-commerce website in the chemistry. Guidechem.com is just a place for you to look for some chemicals! Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people.

Carbofuran — One Of The Most Toxic Pesticides

Carbofuran, a white crystelline solid at room temperature after a phenolic odor, is a broad spectrum carbamate pesticide that kills insects, mites and nematodes on contact or after ingestion. The technical or chemical name is 2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate and its CAS number is 1563-66-2.

Carbofuran was regulated began in 1974 when Congress passed the Safe Drinking Act which required the Environmental Protection Agency to determine safe levels of chemicals in drinking water called “Maximum Contaminant Level Goals (MCLG)” (EPA). The MCLG level for this chemical was initially set at 40 ppb. It is still at this level because many feel that it is the lowest possible level capable of removal from a water source.

In 1994, the EPA banned all use of the granule form of carbofuran because birds eat the granules, which are highly toxic to birds, and large scale bird kills were being observed. There is no ban on liquid pesiticide and both it and granular compound are classified as Restricted Use Pesticides and carbofuran formulations are rated anywhere from “moderately toxic” to “highly toxic”. Then, in August of 2006, the EPA proposed cancellation of all forms of it.

Carbofuran is used sparingly in the US but is banned in Canada and the European Union.. Is applied directly onto soil around plants after their emergence to control beetles, nematodes, and rootworm. It is used most often on alfalfa and rice and was once used on corn, though that use has been terminated.

The liquid is highly toxic by inhalation and ingestion and moderately toxic by dermal absorption. As with other carbamate compounds, carbofuran’s cholinesterase- inhibiting effect is short-term and reversible. Symptoms of poisoning include: nausea, vomiting, abdominal cramps, sweating, diarrhea, excessive salivation, weakness, imbalance, blurring of vision, breathing difficulty, increased blood pressure or ‘hypertension,’ and lack of control of urine or feces release, referred to as ‘incontinence.’ Death may result from respiratory system failure associated with exposure. Complete recovery from an acute poisoning by carbofuran, with no long term health effects, is possible if exposure ceases and the victim has time to reform their normal level of cholinesterase and to recover from symptoms.

Carbofuran has been illegally used to intentionally poison wildlife in the US, Canada and Great Britain; poisoned wildlife have included coyotes, kites, golden eagles and buzzards. Secondary fatal poisoning of domestic and wild animals has been documented, specifically, raptors (bald eagles and golden eagles), domestic dogs, raccoons, vultures and other scavengers. In Kenya, farmers are using the pesticide to kill lions and other predators.

Uriah Sweety is the freelance writer for e-commerce website in the chemistry. Guidechem.com is just a place for you to look for some chemicals! Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people.