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Insecticidal potential of Anonas quamosa seeds against coffee bean weevils (Araecerus fasciculatus) / by Kristel Irish G. Alcazar ... [et al.].

By:

Alcazar, Kristel Irish G [author]

Contributor(s):

Ramos, Dulce L [adviser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 2003.Description: xvi, 45 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

597.58 In7 2003

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

Science High School, College of Education (CED)

Abstract: ALCAZAR, KRISTEL IRISH G., ASTILLA, MONA LIZA V., DIMACUHA, LYKA LESLIE T., and KRISTELL R. PABLO. Insecticidal Potential of Annona squamosa Seeds Against Coffee Bean Weevils (Araecerus Sasciculatus). Applied Research II] (General Science Curriculum). Cavite State University, Indang, Cavite. April 2003. Advisers: Prof. Eleanor G. Ersando and Prof Dulce L. Ramos The research study was conducted at one of the authors’ residence at Indang, Cavite from March 5 to March 8, 2003. It aimed to: determine the insecticidal potential of atis seeds against Coffee Bean Weevils; and determine the most effective concentration of atis seed extract. The reproduction of the CBWs was done at the Crop Protection Laboratory at Cavite State University. The CBWs were subjected to laboratory test by placing ten in each improvised sack per treatment and were subjected to five treatments replicated five times. The treatments used were: TO - control (acetone); T1 - (75 ml of water and 25 ml of extract); T2 - (50 ml of water and 50 ml of extract); T3 - (25 ml of water and 75 ml of extract); and T4 - (100 ml of pure extract). The results showed that T4 (pure extract) and T3 (25 ml of water and 75 ml of extract) were the best concentrations of extract for killing coffee bean weevils although T2 could also kill CBWs. The highest affectivity in killing the CBWs was shown after 72 hours. The descending order of effectiveness was: T4 (pure extract) > T3 (3:1) = T2 (2:1) 2 T1 (1:1). The atis extract proved to have insecticidal effectiveness against coffee bean weevils. The results of the phytochemical test of the ethanolic atis seed extract showed that it contains moderate amounts of alkaloids, and traces of tannin, which caused the mortality and morbidity of the CBWs.

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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	597.58 In7 2003 (Browse shelf(Opens below))		Link to resource	Room use only	R-412		00000885

Research Study (Agri-Science Curriculum) Cavite State University.

Includes bibliographical references.

Science High School, College of Education (CED)

ALCAZAR, KRISTEL IRISH G., ASTILLA, MONA LIZA V., DIMACUHA, LYKA LESLIE T., and KRISTELL R. PABLO. Insecticidal Potential of Annona squamosa Seeds Against Coffee Bean Weevils (Araecerus Sasciculatus). Applied Research II] (General Science Curriculum). Cavite State University, Indang, Cavite. April 2003. Advisers: Prof. Eleanor G. Ersando and Prof Dulce L. Ramos

The research study was conducted at one of the authors’ residence at Indang, Cavite from March 5 to March 8, 2003. It aimed to: determine the insecticidal potential of atis seeds against Coffee Bean Weevils; and determine the most effective concentration of atis seed extract.

The reproduction of the CBWs was done at the Crop Protection Laboratory at Cavite State University. The CBWs were subjected to laboratory test by placing ten in each improvised sack per treatment and were subjected to five treatments replicated five times.

The treatments used were: TO - control (acetone); T1 - (75 ml of water and 25 ml of extract); T2 - (50 ml of water and 50 ml of extract); T3 - (25 ml of water and 75 ml of
extract); and T4 - (100 ml of pure extract).

The results showed that T4 (pure extract) and T3 (25 ml of water and 75 ml of extract) were the best concentrations of extract for killing coffee bean weevils although T2 could also kill CBWs. The highest affectivity in killing the CBWs was shown after 72 hours. The descending order of effectiveness was: T4 (pure extract) > T3 (3:1) = T2 (2:1) 2 T1 (1:1). The atis extract proved to have insecticidal effectiveness against coffee bean weevils.

The results of the phytochemical test of the ethanolic atis seed extract showed that it contains moderate amounts of alkaloids, and traces of tannin, which caused the mortality and morbidity of the CBWs.

Submitted to the University Library R-412