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Pest management strategies for corn production in Bukidnon / Angelo R. Josue.

By:

Josue, Angelo R [author]

Contributor(s):

Exconde, Ofelio R [adviser]

Material type: Text

TextLanguage: English Publication details: Los Baños, Laguna : 1982. Cavite State University- Main Campus,Description: 257 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

633.15 J79 1982

Online resources:

Click here to view thesis abstract and table of contents

Abstract: JOSUE, ANGELO RAMAYAN, University of the Philippines at Los Banos, May, 1982. Pest Management Strategies for Corn Production in Bukidnon. Major Professor: Dr. Ofelio R. Exconde, Three short-term integrated pest management strategies for key pests of corn namely: Peronosclerospora philippinensis (Weston) Shaw; Rottboellia exaltata L. f. and Ostrinia furnacalis Guenee, were formulated and tested on two cultivars under three nitrogen rates for two seasons in three corn growing areas in the Province of Bukidnon. These were the following: (a) pest management strategy 1, a low input pest management strategy with an average investment cost of 390.25 per hectare; (b) pest management strategy 2, with an average investment cost of ®764.15 per hectare; and (c) pest management strategy 3, with an average cost of P1,235.90 per hectare. The economic feasibility of the three pest management strategies were determined by cost and return analysis and comparative analysis of its incremental benefit/cost ratio. The results of the study reveal varying increases from the different pest management strategies over that of the untreated check from location to location and from season to season, The yield obtained with the use of pest management strategy 1 ranged from 2.16 to 6.47 tons per hectare during the wet season and from 2.04 to 2.59 tons per hectare during the dry season. The percentage yield increase over that of the untreated check ranged from 6 to 163 per cent and from 7 to 40 per cent during the wet and dry season, respectively. The yield obtained with the use of pest management strategy 2 ranged from 3.10 to 7.19 tons per hectare and from 2.72 to 5.17 tons per hectare, during the wet and dry season, respectively, or a percentage increase over that of the untreated check of 18 to 278 per cent and from 12 to 53 per cent during the wet and dry season, respectively. The yield obtained from the use of pest management strategy 3 ranged from 1.28 to 7,41 tons per hectare and from 2.87 to 2.93 tons per hectare during the wet and dry season, respectively. The yield increase over the untreated check ranged from 22 to 140 per cent and from 18 to 70 per cent during the wet and dry season, respectively, Varying amounts of net income per hectare were obtained with the implementation of a particular pest management strategy. The net income obtained with pest management strategy 1 ranged from P146.03 to ~4,822.45 during the wet season and from $362.09 to P2,989.54 during the dry season. With pest management strategy 2, the net income per hectare ranged from P802.53 to P5,232.25 and from 241.69 to ®2,779.07 during the wet and dry season, respectively, The net income obtained with the use of pest management strategy 3 ranged from P1,375.61 to $4,901.86 during the wet season and from 406.25 to B2,781,17 during the dry season. Analysis of the incremental benefit/cost ratio reveals that there is a decrease in the net benefit as the investment cost for pest management increases,

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Holdings ( 1 )
Title notes ( 4 )

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	633.15 J79 1982 (Browse shelf(Opens below))		Link to resource	Room use only	T-1535		00002374

Thesis (Ph.D. - - Plant Pathology) University of the Philippines, College, Laguna.

Includes bibliographical references.

JOSUE, ANGELO RAMAYAN, University of the Philippines at Los Banos, May, 1982. Pest Management Strategies for Corn Production in Bukidnon. Major Professor: Dr. Ofelio R. Exconde,

Three short-term integrated pest management strategies for key pests of corn namely: Peronosclerospora philippinensis (Weston) Shaw; Rottboellia exaltata L. f. and Ostrinia furnacalis Guenee, were formulated and tested on two cultivars under three nitrogen rates for two seasons in three corn growing areas in the Province of Bukidnon. These were the following: (a) pest management strategy 1, a low input pest management strategy with an average investment cost of 390.25 per hectare; (b) pest management strategy 2, with an average investment cost of ®764.15 per hectare; and (c) pest management strategy 3, with an average cost of P1,235.90 per hectare.

The economic feasibility of the three pest management strategies were determined by cost and return analysis and comparative analysis of its incremental benefit/cost ratio.

The results of the study reveal varying increases from the different pest management strategies over that of the untreated check from location to location and from season to season, The yield obtained with the use of pest management strategy 1 ranged from 2.16 to 6.47 tons per hectare during the wet season and from 2.04 to 2.59 tons per hectare during the dry season. The percentage yield increase over that of the untreated check ranged from 6 to 163 per cent and from 7 to 40 per cent during the wet and dry season, respectively. The yield obtained with the use of pest management strategy 2 ranged from 3.10 to 7.19 tons per hectare and from 2.72 to 5.17 tons per hectare, during the wet and dry season, respectively, or a percentage increase over that of the untreated check of 18 to 278 per cent and from 12 to 53 per cent during the wet and dry season, respectively. The yield obtained from the use of pest management strategy 3 ranged from 1.28 to 7,41 tons per hectare and from 2.87 to 2.93 tons per hectare during the wet and dry season, respectively. The yield increase over the untreated check ranged from 22 to 140 per cent and from 18 to 70 per cent during the wet and dry season, respectively, Varying amounts of net income per hectare were obtained with the implementation of a particular pest management strategy.

The net income obtained with pest management strategy 1 ranged from P146.03 to ~4,822.45 during the wet season and from $362.09 to P2,989.54 during the dry season. With pest management strategy 2, the net income per hectare ranged from P802.53 to P5,232.25 and from 241.69 to ®2,779.07 during the wet and dry season, respectively, The net income obtained with the use of pest management strategy 3 ranged from P1,375.61 to $4,901.86 during the wet season and from 406.25 to B2,781,17 during the dry season.

Analysis of the incremental benefit/cost ratio reveals that there is a decrease in the net benefit as the investment cost for pest management increases,

Submitted to the University Library 10/26/1993 T-1535