IARA Vol. XXV No. 1 Year. 2008 (pdf, 1000 kb) - Pustaka Deptan

Vol. 25, No. 1, 2008
Indonesian Agricultural Research Abstracts
A field experiment using a paired treatment comparison was conducted at Bojong Nagara Village, Ciledug
Subdistrict, Cirebon District, West Java (approx. 5 m asl) from June until December 2002. The purpose of
this study was to compare the technique and economic feasibility of IPM technology found by Indonesian
Vegetables Research Institute with farmer's system on shallot and hot pepper in relay planting system. The
experiment used comparison design with four replications. The plot size was 100 m 2 . The results on
shallot showed that IPM implementation gave more economically advantages than the farmer's system,
because R/C ratio on IPM plot was 1.47 and R/C ratio on farmer's plot was 0.84, respectively. On hot
pepper, the plant damage in IPM plot was lower than that in farmer's plot, but the yield on IPM plot was
lower than that on farmer's plot. Implementation of IPM could suppress the use of insecticides and
fungicides ca. 61.53 and 100%, respectively on shallot and 72.72 and 90.90%, respectively on hot pepper.
In IPM plot, insecticide and fungicide residue in the soil decreased ca. 23.06% inhibition and 50.72%
inhibition, respectively. In the other hand, the insecticide residu in the soil in farmer's plot increased ca.
8.14% inhibition, but the fungicide residue decreased ca. 20.37% inhibition. Diversity of fauna in the
plantation in IPM plot was higher (22.03%) than the diversity in farmer's plot. Predators population in
IPM plot was higher (11.54-55.5%) than that in farmer's plot. Population of Bacillus sp. and Trichoderma
sp. in IPM plot was higher (35.31 and 58.35% respectively) than that in farmer's plot. Pesticide residue in
shallot bulbs and hot pepper fruits in IPM plot was at the lower level than threshold level, but the residue
in farmer's plot surpassed the threshold level.
073 MOEKASAN, T.K.
Pencampuran Spodoptera exigua Nuclear Polyhedrosis Virus dengan insektisida kimia untuk
mortalitas larva Spodoptera exigua Hbn. di laboratorium. [Mixtures of SeNPV and chemical
insecticides against larvae mortality of Spodoptera exigua Hbn. in laboratory]/Moekasan, T.K. (Balai
Penelitian Tanaman Sayuran, Lembang (Indonesia)) 8 tables; 14 ref. Summaries (En,In). Jurnal
Hortikultura (Indonesia) ISSN 0853-7097 (2004) v. 14(3): p. 178-187.
ALLIUM CEPA; SPODOPTERA EXIGUA; NUCLEAR POLYHEDROSIS VIRUS; TOXICITY;
INSECTICIDES; SYNERGISM; LARVAE; MORTALITY.
A laboratory study has been conducted at Indonesian Vegetables Research Institute, Lembang (± 1,250 m
asl), from August to November 1999. The aim of the study was to determine the effect of binary mixtures,
their efficacy and lethal time against second/third instar of S. exigua larvae. Sample of S. exigua larvae
were collected from farmers' field in Brebes, Central Java and mass production done in a screenhouse. A
dipping method of cutting shallot leaves in a formulated of tested insecticides was used. The formulated
concentration of insecticides, alone and mixtures was tested to thirty S. exigua larvae in a plastic cup with
four replications. Mortality of S. exigua larvae was observed at 24 hours after exposures and repeatedly
every 24 hours up to 168 hours of exposures. The mortality data was analyzed using probit analysis to
determine the LC50 values. Based on LC50 value of insecticides mixtures, the addition of
chlorfluazurone, betacyfluthrine, fifronile, profenofos, dimethoate, deltamethrine, lamda sihalothrine, and
tebufenozide to the SeNPV, indicated synergism and increased their efficacy by 18.9; 24.3; 19.0; 19.3;
19.5; 22.3; 16.3; and 7.0 fold higher, respectively, compared to SeNPV singly. In addition, the LC50 value
were ranging from 86.4 up to 136.8 hours or 4 to 6 days.
074 MOEKASAN, T.K.
Status resistensi lima strain Plutella xylostella L. terhadap formulasi fipronil, deltametrin, profenofos,
abamektin, dan Bacillus thuringiensis. [Resistance study in five strains of Plutella xylostella (L.) to
fipronil, deltamethrin, Bacillus thuringiensis, profenofos, and abamectin formulated
products]/Moekasan, T.K.; Sastrosiswojo, S. (Balai Penelitian Tanaman Sayuran, Lembang (Indonesia));
Rukmana, T.; Sutanto; Purnamasari, I.S.; Kurnia, A. 2 tables; 11 ref. Summaries (En, In). Jurnal
Hortikultura (Indonesia) ISSN 0853-7097 (2004) v. 14(2): p. 84-90.
CABBAGE; CONTROL METHODS; PLUTELLA XYLOSTELLA; BACILLUS THURINGIENSIS;
INSECTICIDES; PEST RESISTANCE.
The toxicity of fipronil, deltamethrin, profenofos, abamectin, Bacillus thuringiensis subsp./var kurstaki
strain EG 7841 (crymax WDG), and B. thuringiensis subsp./var. kurstaki strain HD-7 (dipel WP), was
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