Friday 13 September 2013

Pesticide Plant

Pesticides are poisons that are not environmentally friendly because it can kill living beings as well as polluting, air and air. Akibatnya chemicals contained in pesticides are very likely to poison other people who do not intersect directly with pesticides.Each group of pesticides in general has its own properties and are not effective against the pest from other groups , such as insecticides to control fungi or gulma.Tetapi there is also a type of pesticide that is classified into more than one group, for example, as well as an insecticide as well as nematicides pisisida and on.Therefore selected pesticides shall be in accordance with his or her OPT.The advantages and Disadvantages of Bio PesticidesIts true nature has provided natural ingredients that can be used to cope with pests and plant diseases. Indeed, there are advantages and disadvantages. This roughly advantages and disadvantages of botanical pesticides.Pros :1 . Degradation / rapid decomposition by sunlight2 . Have a rapid effect , ie stop the insect appetite although rarely cause death3 . Generally low toxicity to animals and relatively safer to humans and the environment4 . Has a broad spectrum control ( stomach poison and nerve ) and is selective5 . Can be relied upon to tackle pests that are resistant to chemical pesticides6 . Phitotoksitas low, that does not poison and destroy crops7 . Cheap and easily made by farmersweaknesses :1 . Decomposes quickly and works relatively slowly so that the application should be more frequent2 . Their toxicity is low ( not directly lethal to insects )3 . Production can not be done in large numbers due to raw material shortages4 . less practical5 . Not be storedExamples of botanical pesticidesROOTS TUBA ( Deris eliptica )Compounds that have been found include retenon . Retenon can be extracted using ether / acetone to 2-4 % rotenone resin , is made into a concentrate of water . Rotenon cells work as a very powerful poison ( insecticide ) and as an insect antifeedant cause to stop eating . Insect death occurred a few hours to a few days after the famous rotenone . Rotenon can be mixed with pyrethrin / sulfur. Rotenon is a contact poison ( not systemic ) and as a broad berpspektrum stomach poison . Rotenon can be used as a molluscicide ( for molluscs ) , insecticides ( for insects ) and acaricides ( mite ).

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