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Go Back       Himalayan Journal of Agriculture | Volume :3 Issue:4 | July 30, 2022
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DOI : 10.47310/Hja.2022.v03i04.003       Download PDF       HTML       XML

Study and Distribution of Various Constituents of Whole Neem Tree Used To Control Virus Vectors


Dr. R.K. Jain


I.T. College Botany Department Lucknow, India


*Corresponding Author

Dr. R.K. Jain


Article History

Received: 10.07.2022

Accepted: 20.07.2022

Published: 30.07.2022


Abstract: Among several other natural plants occurring on earth planet, used to control the virus vectors with their insecticidal properties. Neem tree is one of the most important. Almost every part of neem is found to be having important ingredient possessing with insecticidal property which can be applied in different ways in the form of diluted sprays on to the plants body. Neem (Azadirachta indica) is found distributed almost in all regions of India, even at some places predominantly is found.


Keywords: Neem Tree, (Azadirachta indica).


INTRODUCTION

There are found varieties of insect vectors with different potentialities and capabilities of transmitting the viruses of different groups and thus spread viral diseases on plants, also of different genera , families and species . Neem is found to be having Azadirachtin potent natural ingredient product, effective for wide range of control measures. Different parts of neem tree are found to be having other ingredients also like Nimbin, Kulinone, Kulolactone and triterpennoids etc., overall neem tree is found to be having its own significance and importance.


METHODS:-

The whole of the neem tree or its different parts as is the requirement are picked up, then after thoroughly washing, cleaned and then dried by keeping in medium range temperature adjustment in drier or is dried as such naturally by placing in open bright light conditions. Usually leaves are freshly grinded powdered, dissolved in water and then extraction is obtained by further chemical processes. The insecticidal ingredients are obtained for the experiments to proceed may be used.


Observations, findings and analysis

Different parts of Neem tree

Constituent ingredients analysed and obtained

Neem oil

7- Acetyl neotri chilenone, Azadirachtin and lipids with less polarity like triterpenoids

Flowers

Malicitrin, kaempfeol-3- glucoside and quercetin-3- galactozide

Neem leaves

Quercetin, B- sitosterol, Nimbin, Nimbinone, 6- desacetyl nimbinene, nimban oil and nimbolide

Neem seed cake/kernel

Gedunin and its derivatives, salannol, maldemin vepinin, Triterpenoids, Salanin, Nimbin azadirone, azadiradione, nimbinene and Azadirachtin

Neem trunk

Kulactone, Methyl kulonate, Kulinone

Wood/bark

Nimbinone and 6- deacetyl nimbinone, Kulolactone, Nimbin, Nimbidic acid, Nimbidinin, Fraxinellone.


Discussion:-

Naturally, there are wide variety of plants also which are prone to viral diseases also along with cultivated crops. Both types of plants are commercially important to enhance the quality and standard for the human welfare. Depending on the type of crop to be cultivated then accordingly neem tree ingredient products are selected for foliar spraying mostly and then other parts also. If needed, the mixture spraying is preferred. The sprayings should be of different concentration each time in increasing way but upto certain limits. Recently it is also being analysed and sorted out that which part ingredient should be applied for other categories of plants.


Conclusion:

Co-ordination and Co-operation between cultivation and sprayings by keeping in mind the time factor of varying weather conditions good results could be obtained.


References:-

  1. From "Neem in Agriculture Research Bulletin No 40 (IARI) New Delhi, 1983.

  2. Rembold, H., Forster, H., Czoppelt, C. H., Rao, P. J., & Sieber, K. P. (1984). The azadirachtin , a group of insect growth regulators from the neem tree. Proc. 2nd Int. Neem Conf. Rauischholzhayusen 153-162

  3. Srivastava, K.P., & parmar, B.S. (1985). Neem News Letter 2 (1): 7

  4. Nene, Y.L. (1972). A Survey of viral diseases of pulse crops in U.P. G.B. pant univ. agric, tech bull no 4, 191 pp.

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