A Lot of Research papers and Material On Neem

Tuesday 1 November 2011

Botanical Pesticides And Their Toxicological Study


 Botanical Pesticides

Chemical pesticides constitute serious environmental hazards.  Application hazards and residual toxicity to human beings are noticed and documented.  Emergence of pesticide resistant races in pest populations, destruction of predators and parasites, which exercise a natural check in the pest population, also include the environmental hazards.  Chemical pesticides also destruct beneficial insects and other animal species.  In view of this pesticide of plant origin provides an excellent alternative for protecting crops from insects pests.

Azadirachtin Formulations  
 
 Azadirachtin is a complex tetranotriterpenoid obtained from the seed kernels of neem tree i.e. Azadirachta indica.  This complex chemical has proved as the most important plant ingredient for integrated pest management at the present time.  This has the ability to disturb and inhibit development of eggs, larvae and pupae.  It blocks the molting of larvae and nymphs (blocks metamorphosis), disturb mating and sexual communication, repel larvae and adults, sterilize adults and deter feeding.  This neem based botanical pesticide is available in five formulations with concentration of 300 PPM , 1500 PPM 3000 PPM 10,000 PPM and 50,000 PPM of Azadirachtin.  These formulations are ideally suited for organic farming and control most agriculturally important pests in the orders Lepidotera, Diptera, Coleoptera, Hymenoptera, Homoptera, Orthoptera and Heteroptera. 
Ozoneem Trisul, an Azadirachtin preparation containing 10000ppm marketed by GKFC is very effective in controlling coconut Eriophyid mite (Aceria guerreronis).  A spray  of Ozoneem Trisul @  4ml/ltr of water on infected inflorescence bunches controls the mite population very effectively.  This evaluation of Ozoneem Trisul against coconut Eriophyid mite was carried out by net work unit of All India Net work project on Agricultural Acarology during 2004-05.
Neem Oil

Cold Pressed
 Neem Oil is obtained from the kernel of the neem fruits.  This is extracted by cold pressing method without heating or using any chemicals to retain all the ingredients in the oil, some of which would otherwise be destroyed.  Neem oil is the alternative to chemical pesticides and contains Azadirachtin a tetranotriterpenoid a compound that displays insecticidal properties.  Neem oil is non-toxic, biodegradable, and environment friendly insect repellent.  This anti feedant stops sucking and eating of leaves by insects.  It also reduces laying and hatching of eggs by insects.  Other than in agriculture, neem oil has other uses in medicine, public health care, cosmetic and veterinary applications.  This has a shelf life of more than two years in room temperature.  It is packed in 180 Kg HDPE /MS containers and can be packed in any required pack size. 

No comments:

Post a Comment