Advantages And Disadvantages Of Microbial Insecticides

- Traits such as resistance to pesticides may cause overpopulation in unfavorable plant species, such as weeds. This resistance could also be passed on to species of insects that the pesticides were made for, thus negating the effect of the pesticide in the first place.

Carson clarifies that “the sprays, dust, and aerosols are now applied almost universally to farms, gardens, forests, and homes-nonselective chemicals that have the power to kill every insect, the “good” and the “bad”.” In contemporary world today many people use these mankind chemicals without understanding the effects of nature. For example, the reproduction of bees are dropping traumatically because of the pesticides effects on the insects. According to CNN “How Pesticides are killing the bees “Recent data published in science, Nature and other un journals show that bees are dying from some pesticides that are found in our food supply.” The damaged the chemicals are doing to the bees have worries many scientists. The New York Times wrote, pesticide linked to honeybee deaths, “a group of pesticide believed to contribute to mass deaths of honeybees.” Another example of the harmful chemicals affecting the good insects are by destroying favorable insects such as lady bugs and butterflies, which are another great alternative way to pollinate flower. These beneficial insects are very important for human wellbeing; therefore, we should minimize the use of

Northwest Coalition for Alternatives to Pesticides (NCAP) (Winter 1992). Malathion Insecticide Factsheet. Journal of Pesticide Reform 12(4). Retrieved May 4, 2008, from

The relevant factors in this decision involve looking at the potential advantages of an IGR (insect growth regulator) over the traditional adulticide products currently in the market. With toxicity and safety concerns of these types of products being top of mind for many consumers, the newer IGR products should bring welcome benefits to end consumers using the product on a regular basis.

While research showed there were three segments of insecticide users, the greatest segment was the “end the problem permanently” segment,

In the early 1940’s, a new technology emerged that was able to successfully combat crop-damaging and disease-carrying insects. A new age of synthetic chemical pesticides use arose. After their impressive success in fighting deadly insect-borne diseases during World War II, pesticides were used widely to combat insect pests for agriculture and public health. Few people challenged the benefits of the new scientific and technological products and many embraced pesticide use with enthusiasm. Despite its success, doubts about pesticide use began to appear a decade later in the 1950’s, when the government began a vigorous pesticide campaign across the country against insect pests. Scientists began reporting heavy losses of avian and

Figure 1 illustrates the effects of four insecticides on adult crickets at four different concentrations over the span of 24 hours. Taking the average of all the dead crickets at each concentration, dividing by five, and multiplying by 100 found the % response. The probit number was found from the % response number. Taking the probit number, diving by 10, and multiplying by 100 found the % probit response, which is shown on the y-axis. The log of the four concentrations used represents the log dose on the x-axis.

Genetically modified crops are being developed to produce their own pesticide. This will bring the rapid appearance of resistant insects. Even worse, these pesticide producing plants have killed some beneficial insects and pests that many farmers use in their crops. For example, inserting a gene from a snowdrop, a perennial herb found in Europe and Asia into a potato, made the potato resistant to the green fly, but killed lady bugs that feed on green flies.

When we spray chemicals looking to kill off all of the insects that are unwanted; in fact only the weak bugs are killed and the chemical-resistant bugs survive, and then reproduce creating a whole generation of chemical-resistant bugs. Insecticides are beginning to not be able to kill the bugs they once were able to because of the genetic changes going on in species. Bugs that are becoming resistant to our defenses are mosquitos, ticks, lice, cockroaches, and other menaces. Companies try the technique of switching chemical but with very little

If the organic crops were to be invested, pesticides cannot be used to control the infestation which will lead to the crop being terminated by the pests. Therefore if emergency chemicals are used the crops are no longer organic. Inorganic crops are also threatened, however, crops can be genetically modified and chemically treated so that there is less risk of infestation. Chemical suppliers are urged to apply for registration of emergency agricultural chemicals to be used on the maize crops to prevent the destruction of crops.

The problem with broad range conventional pesticides is that they not only kill the bad bugs, but they rub out the good bugs, too. A garden without natural predators means a world of insects gone wild. There's nothing left to keep pest levels in check. In fact, chemicals can mean double trouble because although you wipe out the first wave of pests, the second wave which is not the usual pest, but another insect moving into the area can cause even greater losses than the insects you were trying to get rid of in the first place. Another reason to go natural and use beneficials, is that a greater number of insects are now showing resistance to chemical pesticides. For

A pesticide is any substance used to kill, prevent, or control certain types of plant or animal life which is called pests. It includes pesticides, herbicides, insecticides , fungicides , disinfectants , and compounds used to control mice and rats. Because of the widespread use of agricultural chemicals in food production, people are exposed to low levels of pesticide residues through their diets(Biomagnification). We cannot yet have a clear understanding of the health hazards of these pesticide residues. Other evidence suggests that children are very vulnerable to harmfull effects from exposure to pesticides, including neurological developmental effects.

The DDT is a medical tool used to eliminate the pesticides and against the Malaria. First, The use of toxic pesticides in insects management has become a widely adopted practice in all countries of the world. It is hard to find where pesticides are not used. However, it can harm farmland and reduce the concentration of nutrients in the soil, such as nitrogen and phosphorus. It only damages beneficial insect

In spite of the fact that pyrethroid insecticides are present in a wide variety of

3-When a pest species develops resistance or tolerance to a pesticide, the resistant form of the pest can greatly increase its numbers over the normal levels that were common when the pesticide was effective. The resistant form has a competitive advantage over other members of the population. They are not "new" organism but are more adapted to the conditions prevailing in an area that is subject to the pesticide. Many pests reproduce quickly and heavily so the chance that some of them may be resistant is increased, and when resistant