EKSTRAK BIJI NIMBA Azadirachta Indica A Juss PENGARUHNYA TERHADAP PELETAKAN DAN PENETASAN TELUR ULAT HATI KUBIS Crocidolomia Pavonana F (THE EFFECTS OF NEEM SEED EXTRACT Azadirachta Indica A Juss TO THE OVIPOSITION AND SUPPRESSING EGGS FERTILITY OF Crocidolomia Pavonana F)

Suyanto, Agus ( LPPM - Universitas Jenderal Soedirman)
Manan, Abdul ( LPPM - Universitas Jenderal Soedirman)

Pembangunan Pedesaan
Vol 11, No 1 (2011)

This research aims to determine the effective concentration of neem seed extract in suppressing
the oviposition of C. pavonana. This research was conducted at the Laboratory of Pest and Plant
Diseases Faculty of Agriculture Unsoed at Purwokerto. The design used was randomized block design.
The treatments tested were concentration of neem seed extract 0, 2.5%, 5.0%, 7.5%, and 10.0%. The
variables measured were the number of clusters of eggs laid and number of eggs that hatched. The results
showed that neem seed extract concentration of 2.5% was effective in suppressing the oviposition of C.
pavonana amounted to 84.87% and concentration of 5% was effective in suppressing egg fertility of C.
pavonana of 95%.