Remarks in Successful Cellular Investigations for Fighting Breast Cancer Using Novel Synthetic Compounds

Abstract

In 1986-89 26 million ha of locust infestation area was treated with 16 million liter of liquid and 14 million kg of dust pesticides, for about US$ 315 million (FAO). It is widely believed, that the effect of chemical control on the overall decline of the desert locust population was insignificant. Since the banning of dieldrin and BHC, replacement acridicides such as OPs or synthetic pyrethroids or combination of these have been used. OPs generally have a high mammalian and avian toxicity, while synthetic pyrethroids often adversely affect aquatic organisms or beneficial insects. Insect growth regulators (IGR): derivatives of benzoyl urea, which inhibits chitin synthesis. Some examples are teflubenzuron, triflumuron, diflubenzuron. Juvenile hormone analogues (JHA): action is by suppression of the gregarisation process, scattering of hopper bands and malformation of parts of the insect body. Effects have not been fully evaluated for practical use in the field. An example is fenoxycarb. Botanicals: Azadirachta indica or neem extacts produce a repellent effect and also act as an anti-feeding agent when applied on crops at all growth levels. Melia volkensii has similar characteristics. Pathogens can be bacterial, such as Bacillus thuringiensis or fungal, such as Metarhizium flavoviridae and Beauveria bassiana. M. flavoviridae appied to settled swarms changes their behavior, causing no or late departure from their roosts and exposure to solar radiation. They are slow acting with good mortality rates after 6 days.