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Diversity and abundance of anthropods in multiple cropping system in the upland towns of Cavite during wet season / Teddy F. Tepora.

By:

Tepora, Teddy F [author]

Contributor(s):

Marges. Bernardo E [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite, 1999. Cavite State University- Main Campus,Description: 68 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

631.58 T26 1999

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

Graduate Studies Open Learning College (GSOLC)

Abstract: TEPORA, TEDDY F., April 12, 1999. Cavite State University, Indang, Cavite. Diversity and Abundance of Arthropods Associated with Multiple Cropping System in Upland Towns of Cavite During Wet- Season. Major Adviser, Dr. Bernardo E. Marges. The population build-up of arthropods associated with selected crops in multiple cropping system and the level of predation and parasitism were studied. Eighteen insect pests and fourteen natural enemies were observed to be associated with crops under study. The listed pests were leaf folder, tussock moth, guayabano moth, gay semi-looper, banana leafroller, lacewing bug, oriental fruit fly, coffee twig borer, coffee berry borer, whitefly, gray mealybug, hemispherical scale, coconut scale, Guayabano scale, black aphids, coconut aphids and mango leafhopper. The listed natural enemies were Orange, black, lady spotted beetle and two-spotted coccinellid, black rhizobium, praying mantis, earwig, jumping spider, melon spider, golden orb-weaving spider, orb-weaving spider, lynx spider, chalcid wasp and euploid wasp. Most of the pests were present on different crops at various degree of infestation throughout the duration of the study. However, the presence of coffee berry borer was only detected in December. Likewise, guayabano moth was only observed in June, while banana leafroller was observed during the month of June to July and gray semi-looper from June to November. Predatory coccinellid and spiders were also observed to be present on crops throughout the observation period. On the other hand, parasites such as chalcid wasp and egg parasitoid were only observed during the month of June to November and August to October, respectively. The rate of predation on hemispherical scale ranged from 79.49% to 89.51% by the orange coccinellid, 26.49% to 44.48% by black coccinellid and 40.03% to 7.08% by the two-spotted coccinellid. The rate of predation by the orange coccinellid on gray mealybug range from 61.88% to 73.72%. Whitefly was also attacked by black rhizobium which ranged from 39.2% to 59.46%. Egg and larvae of banana leafroller were observed to be parasitized by two parasitic wasps. The rate of parasitism ranged from 33.33% to 75.95% by euploid wasp and 39.2% to 59.46% by chalcid wasp.

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Holdings ( 1 )
Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	631.58 T26 1999 (Browse shelf(Opens below))		Link to resource	Room use only	T-1924		00002594

Thesis (M.S. - - Farming Systems) Cavite State University.

Includes bibliographical references.

Graduate Studies Open Learning College (GSOLC)

TEPORA, TEDDY F., April 12, 1999. Cavite State University, Indang, Cavite. Diversity and Abundance of Arthropods Associated with Multiple Cropping System in Upland Towns of Cavite During Wet- Season. Major Adviser, Dr. Bernardo E. Marges.
The population build-up of arthropods associated with selected crops in multiple cropping system and the level of predation and parasitism were studied.
Eighteen insect pests and fourteen natural enemies were observed to be associated with crops under study. The listed pests were leaf folder, tussock moth, guayabano moth, gay semi-looper, banana leafroller, lacewing bug, oriental fruit fly, coffee twig borer, coffee berry borer, whitefly, gray mealybug, hemispherical scale, coconut scale, Guayabano scale, black aphids, coconut aphids and mango leafhopper. The listed natural enemies were Orange, black, lady spotted beetle and two-spotted coccinellid, black rhizobium, praying mantis, earwig, jumping spider, melon spider, golden orb-weaving spider, orb-weaving spider, lynx spider, chalcid wasp and euploid wasp.
Most of the pests were present on different crops at various degree of infestation throughout the duration of the study. However, the presence of coffee berry borer was only detected in December. Likewise, guayabano moth was only observed in June, while banana leafroller was observed during the month of June to July and gray semi-looper from June to November.
Predatory coccinellid and spiders were also observed to be present on crops throughout the observation period. On the other hand, parasites such as chalcid wasp and egg parasitoid were only observed during the month of June to November and August to October, respectively.
The rate of predation on hemispherical scale ranged from 79.49% to 89.51% by the orange coccinellid, 26.49% to 44.48% by black coccinellid and 40.03% to 7.08% by the two-spotted coccinellid.
The rate of predation by the orange coccinellid on gray mealybug range from
61.88% to 73.72%. Whitefly was also attacked by black rhizobium which ranged from
39.2% to 59.46%.
Egg and larvae of banana leafroller were observed to be parasitized by two parasitic wasps. The rate of parasitism ranged from 33.33% to 75.95% by euploid wasp and 39.2% to 59.46% by chalcid wasp.

Submitted to the University Library 05/05/1999 T-1924