dc.contributor.author	McDonald, Sharon Angella	en
dc.contributor.committeechair	Ravlin, Forrest W.	en
dc.contributor.committeemember	Fell, Richard D.	en
dc.contributor.committeemember	Pfeiffer, Douglas G.	en
dc.contributor.department	Entomology	en
dc.date.accessioned	2014-03-14T20:52:12Z	en
dc.date.adate	1997-08-25	en
dc.date.available	2014-03-14T20:52:12Z	en
dc.date.issued	1997-07-09	en
dc.date.rdate	1998-08-25	en
dc.date.sdate	1997-07-09	en
dc.description.abstract	Coconut mite populations and levels of damage to 2-, 4- and 10-month old Maypan and Red Malayan Dwarf nuts in Low and High Rainfall Zones of eastern Jamaica were evaluated. Damage due to the coconut mite was assessed by quantifying scarring of the nut surface, size reduction and copra yield. It was found that coconut mite populations were the same in the two rainfall zones but differed between Maypan and Red Malayan Dwarf varieties. More Maypan nuts were infested with coconut mites than Red Malayan Dwarf nuts. More 2-month old Red Malayan Dwarf nuts were attacked than 2-month old Maypan nuts while more 10-month old Maypan nuts were colonized than 10-month old Red Malayan Dwarf nuts. In both varieties, a greater percentage of 4-month old nuts had > 1,000 coconut mites than 2- and 10-month old nuts. Nuts in the Low Rainfall Zone had greater percentage of coconut mite damage than nuts in the High Rainfall Zone. Damage was more severe on Red Malayan Dwarf than on the Maypan nuts. The water content of Red Malayan Dwarf nuts declined with increased coconut mite damage but no relationship was found between the water content of Maypan nuts and coconut mite damage. Nut size and copra yield declined significantly with increased coconut mite damage. Total copra yield loss was only about 3% in Maypan and 6% in Red Malayan Dwarf nuts because most of the nuts had < 30% surface area damage.	en
dc.description.degree	Master of Science	en
dc.identifier.other	etd-71997-85230	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-71997-85230/	en
dc.identifier.uri	http://hdl.handle.net/10919/36916	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	etd.pdf	en
dc.relation.haspart	ch1.pdf	en
dc.relation.haspart	ch2.pdf	en
dc.relation.haspart	ch3.pdf	en
dc.relation.haspart	ch4.pdf	en
dc.relation.haspart	ch5.pdf	en
dc.relation.haspart	ch6.pdf	en
dc.relation.haspart	append.pdf	en
dc.relation.haspart	vita.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	coconut	en
dc.subject	Eriophyes guerreronis	en
dc.subject	Eriophyidae	en
dc.subject	infestation	en
dc.subject	yield loss	en
dc.title	Infestation Patterns of the Coconut Mite, Eriophyes guerreronis (Keifer) (Acari: Eriophyidae), on Coconuts and Resulting Yield Loss in Eastern Jamaica	en
dc.type	Thesis	en
thesis.degree.discipline	Entomology	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	masters	en
thesis.degree.name	Master of Science	en

Infestation Patterns of the Coconut Mite, Eriophyes guerreronis (Keifer) (Acari: Eriophyidae), on Coconuts and Resulting Yield Loss in Eastern Jamaica

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