Normal view MARC view ISBD view

Comparative efficacy of makabuhai (Tinospora rumphii Beerl.), black pepper (Piper nigrum Linn.), and red pepper (Capsicum frutescens Linn.) against corn weevil (Sithophilus zeamais M.) / by Angelina B. Taduran

By:

Taduran, Angelina B [author]

Contributor(s):

Rodil, Josefina N [adivser]

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : 1990. Cavite State University- Main Campus,Description: 65 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

633.159 T12 1990

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

Abstract: TADURAN, ANGELINA B. Don Severino Agricultural College at Indang, Cavite, April 1991. Comparative Efficacy of Makabuhai (Tinospora rumphii Boerl.), Black pepper (Piper nigrum Linn.), and red pepper (Capsicum frutescens Linn.) against Corn weevil (Sitophilus zeamaïs M.) Major Professor: Dr. Josefina Rodil Rint The experiment was conducted at the Biological Sciences Department from April to August 1990. This aimed to determine the comparative efficacy of makabuhai, black pepper and red pepper as botanicals under warehouse condition and to determine the residual toxicity of the same botanicals under laboratory condition against corn weevil (CW). Two methods (sprayed and dipped) were used in finding out their residual toxicity and two treatments (dipped and admixed) were compared in warehouse trials within two months. Randomized Complete Block Design (RCBD) was used in this experiment. Trials on residual toxicity showed that majority of CW were weakened and immobilized than killed by the three botanicals. Among the botanicals, makabuhai was the most effective under laboratory condition but effective only when still fresh. Dipping jute sacks with botanicals caused higher mortality than spraying. On the contrary, trials on warehouse condition showed that black pepper and red pepper were more effective than makabuhai. Although majority of CW were killed by the three botanicals 10 days after treatment, the toxic effect of black pepper and red pepper was longer (55 days) as compared to makabuhai (25 days). Admixing the corn with red pepper and black pepper caused a 50% population reduction. They retained more of their active principles than that of makabuhai until 55 days after treatment. Among the treatments, the red pepper treated corn was the least damaged after two months of infestation. Admixing the corn with botanicals was more effective in controlling the population build-up of CW than dipping method.

Average rating: 0.0 (0 votes)

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	633.159 T12 1990 (Browse shelf(Opens below))		Link to resource	Room use only	T-1143		00002158

Thesis (BSA - - Crop Protection) Don Severino Agricultural College.

Includes bibliographical references.

College of Agriculture, Food, Environment and Natural Resources (CAFENR)

TADURAN, ANGELINA B. Don Severino Agricultural College at Indang, Cavite, April 1991. Comparative Efficacy of Makabuhai (Tinospora rumphii Boerl.), Black pepper (Piper nigrum Linn.), and red pepper (Capsicum frutescens Linn.) against Corn weevil (Sitophilus zeamaïs M.) Major Professor: Dr. Josefina Rodil Rint
The experiment was conducted at the Biological Sciences Department from April to August 1990. This aimed to determine the comparative efficacy of makabuhai, black pepper and red pepper as botanicals under warehouse condition and to determine the residual toxicity of the same botanicals under laboratory condition against corn weevil (CW). Two methods (sprayed and dipped) were used in finding out their residual toxicity and two treatments (dipped and admixed) were compared in warehouse trials within two months. Randomized Complete Block Design (RCBD) was used in this experiment. Trials on residual toxicity showed that majority of CW were weakened and immobilized than killed by the three botanicals. Among the botanicals, makabuhai was the most effective under laboratory condition but effective only when still fresh. Dipping jute sacks with botanicals caused higher mortality than spraying.
On the contrary, trials on warehouse condition showed that black pepper and red pepper were more effective than makabuhai. Although majority of CW were killed by the three botanicals 10 days after treatment, the toxic effect of black pepper and red pepper was longer (55 days) as compared to makabuhai (25 days). Admixing the corn with red pepper and black pepper caused a 50% population reduction. They retained more of their active principles than that of makabuhai until 55 days after treatment. Among the treatments, the red pepper treated corn was the least damaged after two months of infestation. Admixing the corn with botanicals was more effective in controlling the population build-up of CW than dipping method.

Submitted to the University Library 01/06/1991 T-1143