Abstract
This study was designed to evaluate the association between maize pest dynamics and in relation to abiotic factors (temperature, relative humidity and rainfall) in tehsil Minchinabad district Bahawalnagar. The study was conducted from months of April to July in the crop of maize. The current study indicates that the attack of the insect pest increased on maize. These insect pests and diseases on maize are Stem borer (Chilo partellus), Armyworm (Spodoptera frugiperda), Common earwig (Forficula auricularia), Garden snail (Helix aspersa), Red cotton stainer (Dysdercus cingulatus), Aspergillus flavus and Rotten corn disease stock have been recognized to their broad environmental distribution in Bahawalnagar as a result of weather parameters. At higher temperature there was a marked increase in the population of pests while at relative humidity 46% and temperature 400C maximum population of the pest was recorded, it means that higher the temperature and relative humidity there was a marked fluctuation in pest dynamics and hence in spite of the absence of rainfall, the pest outbreak was recorded. Statistically different results significantly different (p < 0.05) using ANOVA one-way and linear regression.
Highlights
IntroductionMaize farming is worldwide and is the most essential cereal crop all over the world
Maize or corn (Zea mays) is a member of the grasses (Poaceae) family
The present study was planned to observe the effect of temperature, relative humidity and rainfall on the population dynamics of some insect pests of maize
Summary
Maize farming is worldwide and is the most essential cereal crop all over the world It is used as essential food for humans, and for mammal feed and unprocessed matter for the production of numerous industrial goods. In Pakistan later than further cereal crops for example wheat and rice, corn occupies the 3rd position and out of this 98% is cultivated in the area of NWFP and Punjab, where crop rotating motion meets relatively well This is cultivated at 935,500 hectares area with a yearly yield of 1737 tones because maize is used as an important cereal crop (Anonymous, 2004). There are only groups of insect pests that attack maize cause injuries from sowing to harvesting These are too damaging on stocks (Siddiqui and Marwaha, 1993). Observance in the scenario concerning pest attack on maize crop the present investigation planned to examine the result of temperature, relative humidity and rainfall on several insect pests of maize crop
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