The Perception of Manobo Tribe on Different Aspects of Life: Their Effects on the Living and Social Conditions in San Luis, Agusan Del Sur

The study attempted to determine the perception of the Manobo tribe and their effect on their living and social conditions in Barangay Sta. Ines, San Luis Agusan del Sur. The descriptive method was used in this study describes the perception among the Manobo tribe on different aspects of life: their living and social conditions.  This study was conducted in barangay Sta. Ines, san Luis Agusan Del Sur.  There were only 195 of them who were taken as the respondents and researcher used the standardized questionnaire which were taken from the book of Mendez and used by the previous researchers. Hence, no validation was needed.  The random sampling design was used in this study in selecting the respondents. On the level of perception among the Manobo tribe, the Manobos agree on their belief in god as supported with the total average weighted mean ranging from 2.01 to 2.73 or agree.  They strongly agree to get involved in social gathering as evidenced with total weighted mean of 2.21 or agree.  They strongly agree on good aspiration as evidenced with average weighted mean of 2.71 or agree.  They agree on the family practices as supported with the average weighted mean of 2.45 or agree.  They strongly agree on good family upbringing accompanied with an average weighted mean of 2.57 or strongly agree.  They also strongly agree on how to treat visitors accompanied with an average weighted mean of 2.79 or strongly agree. On the living conditions, the Manobos rank 1 that they do not depend their main source of income but they work hard to have additional income for their family needs.  They also rank 1 that their house is made up of wood, Nipa and bamboos for the shelter of their family and the Manobo rank 1 that they usually used herbal for their natural medicine but they send the sick person to the hospital for the health of the family. On the social conditions, the Manobos strongly agree to establish a neighborhood relationship with an average weighted mean of 2.78 or strongly agree.  They also agree to establish kinship relationship and community relationship as indicated with an average weighted mean of 2.84 and 2.78 or strongly agree respectively. On the effect of perception on different aspects of life, belief in God, social; gathering, family practices, family upbringing and aspiration are best predictors in the financial condition of Manobo.  Aspiration, family practices, treating visitors, wedding practices and social gathering are best predictors in neighborhood relationship.  Wedding practices, treating visitors, aspiration, family practices, social gathering, family upbringing and belief in God as the best predictors in kinship relationship Family upbringing, aspiration, and family practices are best predictors in community relationship.

Potential of Microbial Insecticides and Diatomaceous Earth Against Three Coleopterous Insect Pests of Stored Grains under Different Abiotic Conditions

Sitophilus granarius (L.), Rhyzopertha dominica (F.) and Oryzaephilus surinamensis (L.) are the damaging insect pests of cereals and their commodities and are able to cause significant losses. Current research was performed to evaluate the lethal and progeny inhibition effect of microbial-based insecticides i.e entomopathogenic fungi (EPF) Metarhizium anisopliae and Beauveria bassiana as well as bacterial based insecticides (spinetoram and abamectin) solitary andwith combination of two formulations of diatomaceous-earth (DE) against S. granarius, O. surinamensis and R. dominica. Three concentrations (1x108, 1.5x108 and 2x108 spores/kg grain) of each EPF were used while for bacterial based insecticides concentrations were 0.5, 1.0 and 1.5ppm. Similarly, for diatomaceous earth, three different doses (200, 400 and 800 ppm) of every formulation were applied. Completely Randomized Design (CRD) was used with three repetitions of all treatments. Mortality of test insects was recorded after 7, 14 and 21 days while after 60 days for post-treatment progeny build up. Each bioassay was performed at three levels of temperature (25°, 30° and 35°C) and relative humidity (r.h.; 45, 60 and 75%). Collected statistics were examined with applicable statistical methods using R-Software.The data analyses had shown diversified results regarding test insect susceptibility at different abiotic conditions. In case of Bacterial based insecticides, the response of treatment remained best at high temperature and low r.h. for all test insects. Complete control was achieved after 14 days for S. granarius and R. dominica while for O. surinamensis 100% mortality was not attained even after 21-d of exposure period. Progeny production was remained totally suppressed for S. granarius and R. dominica while in case of O. surinamensis there was significant reproduction at some abiotic conditions with maximum production at temperature of 30°C with 75% r.h. The response of-D.E against test insects was also effective and the most vulnerable species was O. surinamensis followed by S. granarius and R. dominica. It was observed that high temperature, low r.h. levels, higher dosages and long exposure periods increased the efficacy of DEs. Regarding progeny production, low temperature and high humidity remained most favourable for progeny emergence in DE-treated grains. The effects of EPF remained somewhat similar to the response of DE but overall mortality was low. Among tested species of insects R. dominica remained most susceptible to the application of EPF followed by O. surinamensis and S. granarius. The best abiotic condition for B. bassiana was low temperature (25°C) and moderate (60%) humidity while for M. anisopliae moderate temperature (30°C) and moderate (60%) humidity remained suitable at which maximum response was attained. Long exposure intervals and higher dose rates increased the mortality in each case. In the case of progeny development, the emergence of offspring was suppressed at moderate and low temperature for M. anisopliae and B. bassiana respectively with moderate r.h. When DE was applied in combination with the microbial insecticides, a synergistic effect was noticed in all combinations and R. dominica and S. granarius remained more susceptible as compared to O. surinamensis. The response of abiotic condition was significant for combination of DE and EPF while for DE and bacterial based insecticide it was non-significant. The results of the study divulge that all applied microbial based insecticides and DE are very effective for the control of these test insects and different abiotic conditions are responsible for affecting their efficacy. Furthermore, the combinations of these microbial insecticides with DE have a synergistic response against test insects. This study also recommends that attention should be paid to the interaction of abiotic factors with the efficacy of DE and microbial insecticides before planning IPM strategy for stored grain insect pests.