scholarly journals Essential Oils of Aromatic and Medicinal Plants as Botanical Biocide for Management of Coconut Eriophyid Mite (Aceria guerreronisKeifer)

2011 ◽  
Vol 2011 ◽  
pp. 1-5
Author(s):  
Susmita Patnaik ◽  
Kadambini Rout ◽  
Sasmita Pal ◽  
Prasanna Kumar Panda ◽  
Partha Sarathi Mukherjee ◽  
...  
Keyword(s):  
Essential Oils ◽  
Laboratory Experiments ◽  
Field Trials ◽  
Herbal Extracts ◽  
Aceria Guerreronis ◽  
Eriophyid Mite ◽  
Coconut Mite ◽  
Infestation Intensity ◽  
Chemical Pesticide ◽  
Plant Sources

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.

scholarly journals Effect of Botanicals on Infestation Intensity of Aceria Guererronis Keifer in Coconut

2010 ◽  
Vol 50 (2) ◽  
pp. 193-196
Author(s):  
Susmita Patnaik ◽  
Kadambini Rout ◽  
Sasmita Pal ◽  
Partha Mukherjee ◽  
Prasanna Panda ◽  
...  
Keyword(s):  
Essential Oils ◽  
Medicinal Herbs ◽  
Aromatic Plants ◽  
Medicinal And Aromatic Plants ◽  
Eriophyid Mite ◽  
Damage Reduction ◽  
Infestation Intensity ◽  
Botanical Extracts ◽  
New Perspective ◽  
Chemical Pesticides

Effect of Botanicals on Infestation Intensity of Aceria Guererronis Keifer in CoconutThe withdrawal of chemical pesticides opens up a new perspective to control pests through botanical extracts. The essential oils derived from various medicinal and aromatic plants proved to have antifungal, antibacterial and insecticidal properties. The present study is directed towards management of a dreaded pest of coconut i.e. eriophyid mite through exploitation of those properties of the plants. The efficacy of a botanical biocide formulated by using seven different aromatic and medicinal herbs against the infestation intensity of eriophyid mite was tested in the experiment at five different coconut farms in different coconut growing states of India. Four application of the formulated product resulted up to 72.17% damage reduction.

Acaricide resistance in the red tick, Rhipicephalus evertsi Neumann.

1961 ◽  
Vol 51 (4) ◽  
pp. 755-764 ◽  
Author(s):  
G. B. Whitehead ◽  
J. A. F. Baker
Keyword(s):  
South Africa ◽  
Laboratory Experiments ◽  
Sodium Arsenite ◽  
Field Trials ◽  
Cross Resistance ◽  
Acaricide Resistance ◽  
The Past ◽  
High Degree

Early in 1959, observations on the farm Tayside, in the East London district of South Africa, suggested that populations of the ‘two-host’ red tick, Rhipicephalns evertsi Neum., were more difficult to control with toxaphene preparations than they had been in the past. Resistance to toxaphene was suspected, and both field and laboratory experiments were carried out to investigate this possibility. Field trials indicated an increase in tolerance by Tayside populations of the tick to toxaphene, γ BHC and dieldrin, but showed no increased tolerance to sodium arsenite or DDT. Similar results were obtained in laboratory experiments where Tayside adults were compared with those of other populations of the tick known to be sensitive to insecticides. Laboratory experiments with larvae indicated a high degree of resistance to toxaphene and γ BHC in the Tayside population, but no increased tolerance to sodium arsenite, Delnav, Sevin or DDT could be detected. This pattern of cross-resistance is similar to that occurring in resistant populations of Boophilus dccoloratus(Koch).

A Pillar Dynamometer to Measure the Forces on Discs Cutting through Rock

1979 ◽  
Vol 193 (1) ◽  
pp. 169-175
Author(s):  
S. D. Drew ◽  
H. J. Hignett ◽  
P. E. Johnson ◽  
G. I. Crabb
Keyword(s):  
Laboratory Experiments ◽  
Field Trials ◽  
Design Development ◽  
Full Face

This paper describes the design, development and application of pillar dynamometers to measure the forces on discs cutting through rock both in field trials using full-face tunnelling machines and in laboratory experiments.

Note on Preliminary Field Trials of a Bacterium to Control the Codling Moth

1953 ◽  
Vol 85 (1) ◽  
pp. 8-8 ◽  
Author(s):  
C. M. Phillips ◽  
Gordon E. Bucher ◽  
June M. Stephens
Keyword(s):  
Bacillus Cereus ◽  
Laboratory Experiments ◽  
Codling Moth ◽  
Field Trials ◽  
Set Up

A bacterium, Bacillus cereus F. and F., which was isolated from diseased larvae of the codling moth, Carpocapsa pomonella (L.), is pathogenic to the codling moth in laboratory experiments (Stephens, 1952).A series of trials was set up at Kentville to test the effectiveness of this bacterium against codling moth larvae in the field. B. cereus spores were propagated according to the method of Reed and McKercher (1948) and shipped to the field as spore suspensions.

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 ◽  
◽  
...  
Keyword(s):  
Aceria Guerreronis ◽  
Eriophyid Mite

scholarly journals Coconut destiny after the invasion of Aceria guerreronis (Acari: Eriophyidae) in India*

Zoosymposia ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 160-169 ◽  
Author(s):  
M. A. HAQ
Keyword(s):  
Management Practices ◽  
Critical Assessment ◽  
Bakery Products ◽  
Aceria Guerreronis ◽  
Agricultural Income ◽  
Northern India ◽  
Coconut Mite ◽  
Farming Community ◽  
The People ◽  
Considerable Damage

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.

An Instrument for Detecting Non Visible Corrosion of Prestressing Strands Using Guided Waves

2011 ◽  
Vol 304 ◽  
pp. 200-203
Author(s):  
Jiang Xu ◽  
Xin Jun Wu
Keyword(s):  
Laboratory Experiments ◽  
Guided Waves ◽  
Field Trials ◽  
Traditional Methods ◽  
Prestressing Strands

Corrosion of prestressing strands is a main durability issue for prestressing structures. In general, the corrosion zones of strands are hidden in structures which lead to be hardly inspected by traditional methods. An instrument for detecting the non visible corrosion of prestressing strands using magnetostrictive guided waves is provided. The instrument is described in detail. The workflow to detect the strands is provided. Field trials and laboratory experiments show that the information of position, length and amount of the corrosion can be obtained from the data. The instrument provides support for ensuring the safety of prestressing structures.

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