Population dynamics, correlation and regression of leaf miner Aproaerema modicella on soybean
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Keywords:Soybean leaf miner, Aproaerema modicella, population dynamics
The incidence of leaf miner, one of the major pests of soybean was noticed during 30th meteorological weekÂ (0.10 larvae / plant) on soybean at Parbhani in Maharashtra during 2012-13. The maximum populationÂ during the season was observed during 39th MW (2.40 larvae/plant) when the prevailing rainfall, maximumÂ temperature, minimum temperature, before noon relative humidity, afternoon relative humidity, evaporation,Â bright sunshine hours and wind velocity were 21.8 mm, 32.10C, 21.6 0C, 91 per cent, 58 per cent, 4.3, 7.8 hrsÂ and 3.2 kmph, respectively. The correlation between leaf miner population and maximum temperature (r=Â 0.687) and evaporation (r=0.807) was found to be positively significant, whereas with minimum temperatureÂ (r= - 0.689) and wind velocity (r=-0.754) significant negative correlation was observed. The weather parametersÂ contributed for 99.4 per cent of total variation in the population of leaf miner on soybean.
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