scholarly journals Screening of Coconut Genotypes Against Coconut Eriophyid Mite (Aceria guerreronis Keifer.)

2016 ◽  
Vol 7 (1) ◽  
pp. 018-023 ◽  
Author(s):  
A. S. Bagde ◽  
◽  
P. D. Pati ◽  
V. V. Pashte ◽  
◽  
...  
2011 ◽  
Vol 2011 ◽  
pp. 1-5
Author(s):  
Susmita Patnaik ◽  
Kadambini Rout ◽  
Sasmita Pal ◽  
Prasanna Kumar Panda ◽  
Partha Sarathi Mukherjee ◽  
...  

The present study investigated the efficiency of essential oils extracted from different aromatic and medicinal plant sources onAceria guerreronisKeifer, one of the serious pests of coconut. The essential oils and the herbal extracts were prepared in two different formulations and were used both in laboratory and field conditions to assess the efficiency of the formulations against the coconut mite infestation. The field trial results showed that reduction in infestation intensity was found to vary between 73.44% and 44.50% at six different locations of trial farms with an average of 64.18% after four spells of treatment. The average number of live mites was higher in the third month old nuts both in the control as well as the treated nut samples. The laboratory experiments on the efficacy of botanical biocide showed that the time taken for dehydration and shriveling of body cells took only sixty seconds. The multilocational field trials revealed the overall efficiency of the biocide to significantly control the eriophyid mite in coconut crop in an ecofriendly and sustainable manner without adopting any chemical pesticide.


2006 ◽  
Vol 3 (4) ◽  
pp. 325-330 ◽  
Author(s):  
A. Suganthi ◽  
K. Ramaraju . ◽  
S. Kuttalam . ◽  
S.Chandrasekaran .

CORD ◽  
2007 ◽  
Vol 23 (2) ◽  
pp. 9
Author(s):  
K. Ramaraju

A field experiment was conducted at Vellalore from January 2002 to December 2004 to evaluate the influence of organic and inorganic nutrients and the effect of botanicals and insecticide against coconut eriophyid mite. Soil application of nutrients along with spraying of Triazophos 40 EC (5 ml/lit.), azadirachtin 1% (5 ml/lit.) and neem oil (30 ml/lit.) as first, second and third round of sprayings, respectively were evaluated. The results revealed that there was a significant reduction in mite population (65%) after two years in the Integrated Management (IM) treated trees (application of organic and inorganic nutrients, basin cultivation of sunnhemp and three rounds of spraying) followed by trees treated with Nitrogen: Phosphorus: Potash (1.3:2.0:3.5 kg/palm/year) + Farm Yard Manure 50 kg/palm/year + neem cake 5 kg /palm/year + micronutrients + three rounds of sprayings (52.8%).  Similarly, there was also a significant reduction in the per cent damaged green nuts after two years. After second year, the per cent damaged nut was lowest (41.9) in the IM treated trees which was statistically on par with treatment 6 (42.9) as against control (71.8). A similar trend was also recorded after third year. IM package treated trees recorded the lowest nut damage grade of 2.8, 2.4 and 2.1 at harvest followed by IM package without sunnhemp as basin crop 3.0, 2.6 and 2.2 as against 4.3, 4.3 and 4.5 in the check after first, second and third year, respectively.


2012 ◽  
Vol 56 (3) ◽  
pp. 233-246 ◽  
Author(s):  
Debora B. Lima ◽  
José Wagner da Silva Melo ◽  
Manoel G. C. Gondim ◽  
Gilberto J. De Moraes

2017 ◽  
Vol 72 (4) ◽  
pp. 329-337 ◽  
Author(s):  
André Silva Guimarães Sousa ◽  
Poliane Sá Argolo ◽  
Manoel Guedes Correa Gondim ◽  
Gilberto José de Moraes ◽  
Anibal Ramadan Oliveira

2016 ◽  
Vol 66 (1) ◽  
Author(s):  
André Silva Guimarães Sousa ◽  
Manoel Guedes Correa Gondim Jr. ◽  
Poliane Sá Argolo ◽  
Anibal Ramadan Oliveira

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 160-169 ◽  
Author(s):  
M. A. HAQ

The coconut mite, Aceria guerreronis Keifer, has emerged as a common menace to most of the coconut plantations in India. After its first upsurge in Kerala at the end of the 1990´s, the mite has spread to many states in southern and northern India, causing considerable damage. Coconut provides one third of the agricultural income in the regions in which it is grown and more than 10 million people are dependent on this cash crop directly or indirectly through coconut-based industries like coir, copra, oil, honey, furniture, handicrafts, beverages, bakery products and so on. The economic instability of the coconut farming community and the people employed in coconut-based industries rank the highest order. A critical assessment of the various problems created by A. guerreronis in the agricultural economy of India is presented in order to supplement data on crop loss through nut malformation, nut fall, loss in fibre and copra. Varietal differences in susceptibility of the plant and future strategies in terms of management practices for an early control of the mite are discussed, and suggestions for future activities to alleviate mite damage are presented.


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