Browsing Faculty of Agriculture by Author "Adidharma, Dhamayanti"
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Biological control of Helopeltis antonii (hemiptera: reduviidae) toward sustainable agriculture
Adidharma, Dhamayanti (2005)Helopeltis antonii is a serious pest on Cacao plantation that feed mainly on pod and young leaves. Crop losses caused by H antonii have been calculated to be about 20% of the yield. Sybthetic insecticides have been used ... -
Biological control of rats (Rattus tiomanicus MILLER) using the barn owl (Tyto alba)
Adidharma, Dhamayanti (2002)The potential of the Barn Owl, Tyro alba as predator of rats was considered by a number of authors (Lenton, 1978, 1980, 1983; Medway and Yong, 1970; Wood, 1985; Duckett, 1976, 1984). The trial on the biological control of ... -
Natural breeding of barn owls, Tyto alba, at Tunggal Perkasa Oil Palm Plantation, Air Molek, Riau, Indonesia
Adidharma, Dhamayanti (2002)Tyto alba is an effective predator that can be utilized to control rats, Rattus tiomanicus Miller, a serious pest of oil palms (Medway and Young, 1970; Wood, 1985, ; Duckett, 1976, 1981, 1984; Lenton, 1978, 1980a, 1980b, ... -
Without black ant, Dolichoderus bitubercularus no cacao
Adidharma, Dhamayanti (2005)In 1908, in the Cacao plantation in Malang, East Javahad observed that Cacao ant, D tuberculatus, had protected Cacao pods againts H antonii. In Cacao plantation with well populated of black ants and malybugs, the number ...