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Management of the sucking pest complex coconut eriophyid mite coreid bug and button mealy bug infesting coconut bunches (Record no. 26694)

MARC details
000 -LEADER
fixed length control field	03571nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field	OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20220829115720.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field	140128s9999 xx 000 0 und d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number	632.6
Item number	PRI/MA
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name	Priya Mohan
245 ## - TITLE STATEMENT
Title	Management of the sucking pest complex coconut eriophyid mite coreid bug and button mealy bug infesting coconut bunches
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc.	Vellayani
Name of publisher, distributor, etc.	Department of Agricultural Entomology, College of Agriculture
Date of publication, distribution, etc.	2001
502 ## - DISSERTATION NOTE
Degree type	MSc
520 3# - SUMMARY, ETC.
Summary, etc.	A study was conducted at the College of Agriculture, Vellayani from <br/>April 2000 to July 2001 to investigate the nature and extent of damage caused <br/>by the sucking pest complex, coconut eriophyid mite (CEM), coconut coreid <br/>bug (CCB) and coconut button mealy bugs (CB M) infesting coconut bunches <br/>and to devise suitable chemical and biological management measures against <br/>them. <br/>CEM, CCB and CBM attack coconut bunches singly or in combinations, <br/>the combined attack of CEM and CCB being the most predominant. The <br/>coconut palms suffered heavy loss due to the combined infestation of" these <br/>pests by way of premature nut fall , varying degrees of damage in retained <br/>nuts, distortion and stunting of nuts and formation of barren nuts. An annual <br/>premature nutfall of 101.5 nuts palm" was observed due to sucking pest <br/>infestation, the share of nut fall due to CEM, CCB and the combined <br/>infestation of CEM and CCB being 35.96 per cent, 36.45 per cent and 27.59 <br/>per cent respectively. Maximum nutfall was observed in November. 5.81 nuts <br/>bunch" palm" were rendered barren or stunted due to infestation of button <br/>mealy bugs, singly or in combination with other pests. The infestation of <br/>CEM in retained nuts was more or less uniform all through the year whereas <br/>CCB showed wide fluctuation with maximum infestation in bunches that <br/>opened in November. <br/>A new scoring technique was developed, based on surface damage by <br/>the pests to assess the loss incurred due to combined infestation of CCB and <br/>CEM. Significant negative correlation was observed between surface damage <br/> <br/>and nut characteristics like weight of whole nut, weight of dehusked nut, <br/>weight of dewatered nut, volume of nut water and weight of copra. Significant <br/>reduction in the above nut characters was observed in higher scores with high <br/>intensity of surface damage as compared to healthy nuts (Score 1). Reduction <br/>in weight of whole nut, dehuskednut and copra ranged between 17 to 46 per <br/>cent, 13 to 50 per cent and 11 to 53 per cent respectively. <br/>Among the various pesticides evaluated against the sucking pest <br/>complex, neem oil - garlic emulsion (2 %), quinalphos (0.05 %) + wettable <br/>sulphur (0.4 %), endosulfan (0.1 %) + wettable sulphur (0.4 %) and <br/>endosulfan (0.1 %) + neem oil garlic emulsion (2 %) were found to be <br/>effective in reducing the yield loss. <br/>Verticillium suchlasporium (Goddard) and Metarhizium anisopliae <br/>(Metch.) Sorok. were found to be infective to CEM and CCB respectively . <br/>. <br/>Four entomopathogenic fungi Penicillium purpurogenum Stoll., Acremonium <br/>strictum Gams., Fusarium solani (Martius) Sacc. and Paecilomyces varioti <br/>(Bainer) were identified causing natural mortality CEM population and one <br/>fungus, Fusarium moniliforme Wollenw and Reink, to CBM. <br/>Two egg parasitoids viz., Chrysochalcissa oviceps Boucek and Gryon <br/>homeoceri (Nixon), hitherto unknown to parasitise the eggs of CCB were <br/>identified. <br/><br/>
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	Faizal M H (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier	<a href="http://krishikosh.egranth.ac.in/handle/1/5810104459">http://krishikosh.egranth.ac.in/handle/1/5810104459</a>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme	Dewey Decimal Classification
Koha item type	Theses

Holdings
Withdrawn status	Lost status	Source of classification or shelving scheme	Damaged status	Not for loan	Home library	Current library	Shelving location	Date acquired	Total Checkouts	Full call number	Barcode	Date last seen	Price effective from	Koha item type
		Dewey Decimal Classification			KAU Central Library, Thrissur	KAU Central Library, Thrissur	Theses	18/03/2014		632.6 PRI/MA	171753	18/03/2014	18/03/2014	Theses