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Virulence of various Metarhizium spp. (Deuteromycotina: Hyphomycetes)  isolates on cocoa pod borrer pest, Conopomorpha cramerella Snell. (Lepidoptera: Gracillariidae). In Indonesia, Conopomorpha  cramerella  Snell.  (Lepidoptera  :  Gracillariidae) is a serious pest of cocoa.  Entomopathogens such as Metarhizium  spp.  (Deuteromycotina: Hyphomycetes)  can be used to control this pest as an alternative to chemical insecticides.  The purpose of this research was to study the virulence of isolates of Metarhizium  spp. to pupae of C. cramerella. Nine isolates of Metarhizium spp each with 107 conidia/ml rate were used in the experiment.  Pupal mortality  was recorded  daily.  The results showed that isolate MetApCi from chili rhizosphere had the highest virulence causing  96.67% mortality of C.  cramerella  pupae and with an LT50 of 3.04 days.

jurnal hama dan penyakit tumbuhan tropika

VIRULENSI BERBAGAI ISOLAT JAMUR ENTOMOPATOGEN METARHIZIUM SPP. TERHADAP HAMA PENGGEREK BUAH KAKAO CONOPOMORPHA CRAMERELLA SNELL. (LEPIDOPTERA: GRACILLARIIDAE)