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San Fabian, Philippines

The Isabela State University is a public university in the province of Isabela, Philippines. It is mandated to provide advanced instruction in the arts, agricultural and natural science as well as in technological and professional fields. Its main campus is located in Echague, Isabela. Wikipedia.

Van Der Ploeg J.,Leiden University | Van Weerd M.,Leiden University | Masipiquena A.,Isabela State University | Persoon G.,Leiden University
Conservation and Society | Year: 2011

Illegal logging is a threat to biodiversity and rural livelihoods in the Northern Sierra Madre Natural Park, the largest protected area in the Philippines. Every year between 20,000 and 35,000 cu. m wood is extracted from the park. The forestry service and municipal governments tolerate illegal logging in the protected area; government officials argue that banning an important livelihood activity of households along the forest frontier will aggravate rural poverty. However this reasoning underestimates the scale of timber extraction, and masks resource capture and collusive corruption. Illegal logging in fact forms an obstacle for sustainable rural development in and around the protected area by destroying ecosystems, distorting markets, and subverting the rule of law. Strengthening law enforcement and controlling corruption are prerequisites for sustainable forest management in and around protected areas in insular southeast Asia. Copyright: © van der ploeg et al. 2011.

Corpuz M.R.,Isabela State University
Communications in agricultural and applied biological sciences | Year: 2010

The study was conducted to evaluate the economics and effectiveness of Trichogramma and earwigs in the suppression of corn borer and identify other corn pest associated during vegetative stage using light trapping. A Randomized Complete Block Design was used in laying out the experiments with five treatments as follows: Treatment 1-Control, Treatment 2-Trichogramma, Treatment 3-Earwigs, Treatment 4-Light Trapping and Treatment 5-Trichogramma + earwigs. Based on the analysis of variance it revealed highly significant variations among treatments with regards to number of parasitized and unparasitized egg mass of corn borer at 35 and 45 days after planting. In like manner, the damage assessment done by corn borer differed significantly at 35 and 45 days after planting. With regards to weight of green corn grains per sampling area, a highly significant differences was observed among the treatment means. The combination of Trichogramma and Earwigs showed high effectively in the field by exhibiting the highest computed yield per hectare and higher return of investment per peso invested.

Bareng J.L.R.,Isabela State University
ASABE - 21st Century Watershed Technology: Improving Water Quality and Environment 2010 | Year: 2010

A study was conducted in October 2007 to February 2008 at the Isabela State University watershed experimental station at Echague, Isabela. The aim was to evaluate the performance and adaptability of the Water Erosion Prediction Project (WEPP) model in the Philippines, particularly in Cagayan Valley in estimating rate of soil erosion under corn and rice management and to determine the expected surface run-off that could be collected in small water harvesting systems. The study was done following a three phase approach as follows: 1) Establishment and generation of input data using the CLIMWAT model; 2) The second phase involves the establishment of research plots laid out using Randomized Complete Block Design under corn and rice cultivation management to measure actual erosion and run-off; and 3) Comparison and analysis of actual and measured data. Through the analysis, the WEPP model was found adaptable and useful in estimating the amount of erosion and harvestable surface water in the upland areas of Cagayan Valley. The program can be used for agricultural planning and design of farming system in the context of community watershed approach for sustainable agriculture in the rainfed and upland areas.

Afidchao M.M.,Leiden University | Afidchao M.M.,Isabela State University | Musters C.,Leiden University | de Snoo G.R.,Leiden University
Pest Management Science | Year: 2013

Background: The Asian corn borer (ACB), Ostrinia furnacalis (Guenée), has become the most damaging pest in corn in south-east Asia. Corn farmers in the Philippines have incurred great yield losses in the past decades because of ACB infestation. Bacillus thuringiensis (Bt) and Bt herbicide-tolerant (BtHT) corns have been developed to reduce borer attacks worldwide. This study assessed the extent of ACB and non-ACB pest infestations in both GM and non-GM corn in Isabela Province, the Philippines. Specific aims were to reinvestigate the efficacy of Bt corn in controlling ACB, to evaluate what parts of Bt corn plants are susceptible to ACB, to monitor the potential development of ACB resistance and to evaluate whether secondary pests dominate in an ACB-free Bt corn environment. The study involved preparatory interviews with farmers, site selection, field scouting and visual inspection of 200 plants along 200 m transect lines through 198 cornfields. Results: Bt corn can efficiently reduce the ACB pest problem and reduce borer damage by 44%, to damage levels in Bt and BtHT corn of 6.8 and 7% respectively. The leaves of Bt corn were more susceptible, while cobs of Bt corn were less affected by ACB. Non-ACB pests were common in Bt toxin-free cornfields and reduced in non-GM cornfields where ACB was abundant. No secondary pest outbreaks were found in ACB-free Bt cornfields. Conclusion: Bt and BtHT corn hybrids containing the Cry1Ab protein performed well in Isabela Province. Reduced cob damage by ACB on Bt fields could mean smaller economic losses even with ACB infestation. The occurrence of ACB in Bt and BtHT cornfields, although at a moderate and insignificant level, could imply the potential development of resistance to Bt toxin. © 2012 Society of Chemical Industry.

Floresca J.P.,Isabela State University
ACRS 2015 - 36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, Proceedings | Year: 2015

Geographic information system (GIS) is a tool capable of facilitating assessment of vulnerability to the impacts of climate change of farming systems and analyzing crop suitability of crops for agroforestry establishment to enhance the resiliency of existing farming systems. The study was aimed to assess the vulnerability of existing rice and corn farming systems to the impacts of climate variability and extremes and to assess the suitability of tropical fruits to be introduced for the establishment of agroforestry farming systems using GIS. The weighted rating model (equal weights) was used in overlaying thematic maps following the IPCC framework that vulnerability is a function of exposure, sensitivity and adaptive capacity. Results indicated Echague, Isabela had the highest land area with high vulnerability of 99,726.53 ha, followed by Penablanca with 22,872.85 ha, then by Maddela with 7,737.87 ha and Bagabag as the lowest with only 378.85 ha. For the four study sites, most of the land area had low vulnerability with 298,862.93 ha, followed by moderately vulnerable with 176,250.34 ha while the lowest was highly vulnerable with 130,716.10 ha. Babaran, Echague, Isabela had the highest climate change vulnerability index considering that the main crop is only corn exposed to more frequent typhoons and drought. Results also indicated that all the tropical fruits (rambutan, Mango, lanzones, pummelo) and bamboo were suitable to be planted in all the municipal study sites and selected model farms based on the ecological requirements of each. Tropical fruits and bamboo are suitable in climate change-vulnerable areas in Cagayan Valley. The GIS climate change vulnerability maps should be disseminated to LGUs and vulnerable communities to enhance their awareness and utilize the information for planning and decision-making on climate change-resilient farming system development.

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