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INCIDENCE OF SPODOPTERA FRUGIPERDA J.E SMITH AND ENTOMOPATHOGENIC FUNGI IN CORN PLANTS IN THREE DISTRICTS OF BENGKULU PROVINCE (REJANG LEBONG, KEPAHIANG, AND BENGKULU UTARA)

Authors

Sempurna Ginting

Bengkulu University, Indonesia

Hartal

Bengkulu University, Indonesia

Dicky Agus Afriyanto

Bengkulu University, Indonesia

Page :

284 - 292

Keyword : Corn, Entomopathogenic fungi, Mortality, Spodoptera frugiperda, Pests

Abstract :

Spodoptera frugiperda is an important pest that attacks corn plants and causes economic losses. This study aims to evaluate the incidence of attacks S. frugiperda and entomopathogenic fungi on corn plants in three districts in Bengkulu (Rejang Lebong, Kepahiang, and Bengkulu Utara). Observations of sample plants were carried out using purposive sampling. The total sample of corn plants at each research location was 30 plants with an area of 500 m2 for each corn plant. Observations of corn plant pests were carried out on the plants 30 days after planting. The highest incidence of S. frugiperda occurred in Rejang Lebong district (Talang Rimbo 4 was 75.83%), then Kepahiang, and the lowest attack was in North Bengkulu (Tanjung Agung: 31.67%). The highest incidence of entomopathogenic fungi-infected larvae in the field was also found in Talang Rimbo 4 was 33.3%. The identification results showed that the entomopathogenic fungus found in the field was Metarhizium sp. and laboratory testing on S. frugiperda larvae was able to resulted in mortality was 95% at a spore density of 107 conidia/ml.