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Journal > Jurnal Perlindungan Tanaman Indonesia > Periodisitas Harian Kehadiran Walang Sangit (Leptocorisa oratorius F.) pada Kepiting yang Membusuk

 

Jurnal Perlindungan Tanaman Indonesia
Vol 3, No 2 (1997)
Periodisitas Harian Kehadiran Walang Sangit (Leptocorisa oratorius F.) pada Kepiting yang Membusuk
Article Info   ABSTRACT
Published date:
21 Dec 1997
 
To know daily periodicity attendance of rice bug (Leptocorisa oratorius F.) in response to sixth-day-decaying crab, an experiment was conducted in four consecutive days in May 1997 in Gamping, Special Territory of Yogyakarta. The experiment consisted of 17 treatments and 3 replications arranged in randomized completely block design. Seventeen hourly observations (treatments) were made on rice bugs attendance on the decaying crab by direct counting as well as the relative humidity and temperature from 5 am to 9 pm. The result of the experiment showed that the peaks of rice bug attendance were from 10 am to 6 pm, while the highest one was at 5 pm (20 rice bugs).
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