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<title>UF - Plant Protection</title>
<link>http://repository.ipb.ac.id/handle/123456789/118</link>
<description/>
<pubDate>Fri, 06 Nov 2026 03:03:35 GMT</pubDate>
<dc:date>2026-11-06T03:03:35Z</dc:date>
<item>
<title>Respons Kepekaan Larva Plutella xylostella (L.) (Lepidoptera: Plutellidae) terhadap Insektisida Profenofos dan Analisis Aktivitas Asetilkolinesterase</title>
<link>http://repository.ipb.ac.id/handle/123456789/180220</link>
<description>Respons Kepekaan Larva Plutella xylostella (L.) (Lepidoptera: Plutellidae) terhadap Insektisida Profenofos dan Analisis Aktivitas Asetilkolinesterase
SA'ADILLAH
Plutella xylostella (L.) merupakan hama utama tanaman kubis yang telah &#13;
dilaporkan resisten terhadap berbagai golongan insektisida, termasuk organofosfat. &#13;
Penelitian ini bertujuan mengetahui respons kepekaan P. xylostella terhadap &#13;
profenofos dan mengevaluasi aktivitas enzim asetilkolinesterase (AChE). &#13;
Penelitian dilakukan di Laboratorium Fisiologi dan Toksikologi Serangga, &#13;
Departemen Proteksi Tanaman, Institut Pertanian Bogor, menggunakan populasi&#13;
laboratorium dan populasi lapangan dari Desa Sindangjaya, Batulawang, dan &#13;
Palasari, Kecamatan Cipanas, Kabupaten Cianjur. Informasi penggunaan &#13;
insektisida diperoleh melalui wawancara terhadap 25 petani. Respons kepekaan &#13;
diuji dengan metode celup daun (leaf dipping), sedangkan aktivitas AChE dianalisis &#13;
menggunakan metode Ellman yang dimodifikasi. Hasil wawancara menunjukkan &#13;
bahwa 56% petani melakukan penyemprotan dua kali seminggu dan 68% &#13;
menggunakan insektisida organofosfat dengan profenofos sebagai bahan aktif yang &#13;
paling banyak digunakan. Mortalitas larva populasi laboratorium hanya mencapai &#13;
33,3% pada konsentrasi 12.000 ppm bahan aktif (16 kali konsentrasi anjuran), &#13;
sedangkan pengujian pada konsentrasi lebih tinggi tidak dapat dilakukan karena &#13;
menyebabkan fitotoksisitas pada daun uji. Aktivitas AChE pada seluruh populasi &#13;
lapangan lebih tinggi dibandingkan dengan populasi laboratorium. Hasil penelitian &#13;
mengindikasikan bahwa peningkatan aktivitas AChE berkontribusi pada resistensi &#13;
P. xylostella terhadap profenofos.; Plutella xylostella (L.) is a major pest of cabbage and has been reported to be &#13;
resistant to various classes of insecticides, including organophosphates. This study &#13;
aimed to determine the susceptibility of P. xylostella to profenofos and evaluate &#13;
acetylcholinesterase (AChE) activity. The study was conducted at the Laboratory &#13;
of Insect Physiology and Toxicology, Department of Plant Protection, IPB &#13;
University, using a laboratory population and field populations collected from &#13;
Sindangjaya, Batulawang, and Palasari Villages, Cipanas District, Cianjur Regency. &#13;
Information on insecticide use was obtained through interviews with 25 farmers. &#13;
Susceptibility was evaluated using the leaf-dipping bioassay, whereas AChE &#13;
activity was determined using a modified Ellman method. The interviews showed &#13;
that 56% of farmers applied insecticides twice weekly, and 68% used &#13;
organophosphate insecticides, with profenofos as the predominant active ingredient. &#13;
The laboratory population exhibited only 33.3% larval mortality at 12,000 ppm &#13;
active ingredient, equivalent to sixteen times the recommended concentration. &#13;
Higher concentrations were not evaluated because of phytotoxicity on test leaves. &#13;
AChE activity was higher in all field populations than in the laboratory population. &#13;
These findings indicate increased AChE activity contributes to P. xylostella &#13;
resistance against profenofos.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/180220</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Serangan Scirpophaga incertulas (Lepidoptera: Crambidae) dan Oxya chinensis (Orthoptera: Acrididae) pada Pertanaman Padi dengan Perlakuan Insektisida</title>
<link>http://repository.ipb.ac.id/handle/123456789/180067</link>
<description>Serangan Scirpophaga incertulas (Lepidoptera: Crambidae) dan Oxya chinensis (Orthoptera: Acrididae) pada Pertanaman Padi dengan Perlakuan Insektisida
Puspita, Amanda
Padi merupakan tanaman pangan utama yang menjadi sumber energi dan&#13;
makanan pokok bagi masyarakat Indonesia. Salah satu masalah utama yang&#13;
menyebabkan penurunan hasil panen yang signifikan adalah serangan hama.&#13;
Penelitian bertujuan mengetahui pengaruh perlakuan insektisida terhadap serangan&#13;
penggerek batang padi kuning (Scirpophaga incertulas) dan belalang (Oxya&#13;
chinensis) pada pertanaman padi. Penelitian dilakukan pada lahan seluas 900 m2 di&#13;
Kelurahan Situgede, Kecamatan Bogor Barat, Kota Bogor menggunakan rancangan&#13;
acak kelompok dengan 4 perlakuan dan 6 ulangan. Pengamatan dilakukan pada&#13;
pertanaman padi mulai umur 2 hingga 12 minggu setelah tanam (MST). Penelitian&#13;
ini menggunakan 3 perlakuan insektisida sintetik berbahan aktif klorantraniliprol,&#13;
bioinsektisida berbahan aktif Bacillus thuringiensis dan Serratia marcescens,&#13;
insektisida nabati berbahan mimba, dan kontrol. Hasil penelitian menunjukan&#13;
bahwa perlakuan insektisida sintetik menurunkan tingkat intensitas serangan S.&#13;
incertulas dan O. chinensis, tetapi tidak berbeda nyata dengan kontrol berdasarkan&#13;
uji Tukey pada taraf 5%. Selain itu, parasitoid telur Telenomus rowani ditemukan&#13;
pada persemaian, petak insektisida sintetik, bioinsektisida, insektisida nabati, dan&#13;
kontrol, sedangkan Trichogramma japonicum ditemukan pada persemaian, petak&#13;
insektisida nabati, dan kontrol. Perlakuan insektisida tidak berpengaruh signifikan&#13;
terhadap laba-laba predator yaitu famili Oxyopidae, Tetragnathidae, dan Lycosidae.; Rice is the main food crop, providing energy and serving as a staple for the&#13;
Indonesian people. One of the main problems causing a significant decline in crop&#13;
yields is pest infestation. This study aimed to determine the effect of insecticide&#13;
treatments on infestations by the yellow rice stem borer (Scirpophaga incertulas)&#13;
and the grasshopper (Oxya chinensis) in rice fields. The study was conducted on a&#13;
900 m² plot in Situgede Village, West Bogor District, Bogor City, using a&#13;
randomized block design with 4 treatments and 6 replicates. Observations were&#13;
made on the rice crops from 2 to 12 weeks after planting. This research used 4&#13;
treatments, a synthetic insecticide containing the active ingredient&#13;
chlorantraniliprole, a bioinsecticide containing the active ingredients Bacillus&#13;
thuringiensis and Serratia marcescens, a botanical insecticide derived from neem,&#13;
and a control. The results showed that the synthetic insecticide treatment reduced&#13;
infestation intensity of S. incertulas and O. chinensis, but did not differ significantly&#13;
from the control at the 5% level of Tukey's test. Additionally, the egg parasitoid&#13;
Telenomus rowani was found in the seedbed and in plots treated with synthetic&#13;
insecticides, bioinsecticides, and botanical insecticides, as well as in the control&#13;
plots, Trichogramma japonicum was found in the seedbed, botanical insecticide&#13;
plots, and control plots. The insecticide treatments did not significantly affect&#13;
predatory spiders belonging to the families Oxyopidae, Tetragnathidae, and&#13;
Lycosidae.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/180067</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Perkembangan Populasi Nilaparvata lugens Stål (Hemiptera: Delphacidae) dan Predatornya pada Pertanaman Padi yang Diberi Perlakuan Insektisida.</title>
<link>http://repository.ipb.ac.id/handle/123456789/179870</link>
<description>Perkembangan Populasi Nilaparvata lugens Stål (Hemiptera: Delphacidae) dan Predatornya pada Pertanaman Padi yang Diberi Perlakuan Insektisida.
Ardiana, Elin
Padi (Oryza sativa L.) merupakan tanaman pangan pokok utama di Indonesia, dan produksinya dapat menurun akibat serangan wereng batang cokelat (WBC) (Nilaparvata lugens Stål). Hama ini umumnya dikendalikan menggunakan insektisida sintetik, namun aplikasi yang berlebihan dapat memengaruhi populasi musuh alami. Penelitian ini bertujuan untuk mengevaluasi pengaruh insektisida sintetik, bioinsektisida, dan insektisida nabati terhadap populasi wereng batang cokelat dan predatornya di pertanaman padi. Penelitian dilaksanakan pada lahan sawah seluas ± 900 m² menggunakan rancangan acak kelompok dengan empat perlakuan dan enam ulangan. Perlakuan terdiri atas insektisida sintetik berbahan aktif klorantraniliprol, bioinsektisida yang mengandung Bacillus thuringiensis dan Serratia marcescens, insektisida nabati yang mengandung ekstrak daun mimba (Azadirachta indica) serta kontrol tanpa insektisida. Wereng batang cokelat pertama kali ditemukan pada umur tanaman dua minggu setelah tanam. Tidak ada perlakuan insektisida yang memberikan pengaruh nyata terhadap populasi wereng batang cokelat maupun sebagian besar predator. Predator yang ditemukan selama penelitian meliputi Cyrtorhinus lividipennis, Paederus fuscipes, Ophionea nigrofasciata, kumbang koksi (Coccinellidae), serta laba-laba dari famili Lycosidae, Oxyopidae, Tetragnathidae, dan Araneidae. Rendahnya populasi wereng batang cokelat yang diamati selama penelitian diduga berkaitan dengan keberadaan komunitas predator yang tetap bertahan dan berkontribusi dalam menekan perkembangan populasi hama.; Rice (Oryza sativa L.) is the primary staple food crop in Indonesia, and its production can decline due to infestations of the brown planthopper (BPH) (Nilaparvata lugens Stål). This pest is commonly controlled using insecticides synthetic, however excessive application can affect natural enemy populations. This study aimed to evaluate the effects of synthetic, bioinsecticide, and botanical insecticides on the populations of the brown planthopper and its predators in rice fields. The experiment was conducted in a ± 900 m² rice field using a randomized complete block design with four treatments and six replications. The treatments consisted of a synthetic insecticide containing chlorantraniliprole, a bioinsecticide containing Bacillus thuringiensis and Serratia marcescens, a botanical insecticide containing neem (Azadirachta indica) leaf extract, and an untreated control. Brown planthoppers were first detected at two weeks after transplanting. None of the insecticide treatments significantly affected brown planthopper populations or those of most predator taxa. Predators recorded during the study included Cyrtorhinus lividipennis, Paederus fuscipes, Ophionea nigrofasciata, lady beetles (Coccinellidae), and spiders belonging to the families Lycosidae, Oxyopidae, Tetragnathidae, and Araneidae. The low brown planthopper population observed during the study was likely associated with the persistence of predator communities that contributed to suppressing pest population development.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/179870</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
</item>
<item>
<title>Serangan Cnaphalocrosis medinalis dan Pomacea canaliculata serta Kelimpahan Predator pada Pertanaman Padi yang Diberi Perlakuan Insektisida</title>
<link>http://repository.ipb.ac.id/handle/123456789/179852</link>
<description>Serangan Cnaphalocrosis medinalis dan Pomacea canaliculata serta Kelimpahan Predator pada Pertanaman Padi yang Diberi Perlakuan Insektisida
Putri, Vierdy Amanda
Padi merupakan komoditas yang memiliki nilai penting karena menjadi&#13;
sumber bahan makanan pokok untuk memenuhi kebutuhan pangan. Masalah yang&#13;
dihadapi dalam budi daya tanaman padi salah satunya adalah serangan hama.&#13;
Penelitian bertujuan mengkaji tingkat serangan Cnaphalocrosis medinalis dan&#13;
Pomacea canaliculata serta kelimpahan predator pada pertanaman padi (Oryza&#13;
sativa) yang diberi berbagai perlakuan insektisida. Penelitian dilaksanakan di areal&#13;
persawahan ± seluas 900 m² di Kelurahan Situgede, Kota Bogor menggunakan&#13;
rancangan acak kelompok dengan empat perlakuan dan enam ulangan. Perlakuan&#13;
yang digunakan adalah insektisida sintetik dengan bahan aktif klorantraniliprol,&#13;
bioinsektisida dengan bahan aktif Bacillus thuringiensis dan Serratia marcescens,&#13;
insektisida nabati ekstrak daun mimba, dan kontrol. Pengamatan dilakukan mulai&#13;
umur tanaman 2 sampai 12 minggu setelah tanam yang dilakukan sekali setiap&#13;
minggu yaitu pada tiga hari setelah aplikasi insektisida. Hasil penelitian&#13;
menunjukkan aplikasi insektisida sintetik lebih efektif dibandingkan dengan&#13;
bioinsektisida dan insektisida nabati dalam menekan intensitas serangan C.&#13;
medinalis. Kelimpahan predator tidak berbeda nyata pada seluruh perlakuan. Luas&#13;
serangan P. canaliculata relatif rendah pada seluruh perlakuan dipengaruhi oleh&#13;
pengelolaan irigasi dan pengambilan keong mas secara manual.; Rice is a commodity of significant importance because it serves as a source&#13;
of staple food to meet nutritional needs. One of the problems in rice cultivation is&#13;
pest infestation. The study aimed to examine the infestation levels of&#13;
Cnaphalocrosis medinalis and Pomacea canaliculata, as well as the abundance of&#13;
predators in rice plants (Oryza sativa) treated with various insecticide. The study&#13;
was conducted in a 900 m² rice field in Situgede Village, Bogor City, using a&#13;
randomized block design with four treatments and six repetitions. The treatments&#13;
used are a synthetic insecticide with the active ingredient chlorantraniliprole, a&#13;
bioinsecticide with active ingredient Bacillus thuringiensis and Serratia&#13;
marcescens, a botanical insecticide made from neem leaf extract, and a control.&#13;
Observations were conducted starting when the plants were 2 until 12 weeks after&#13;
planting, conducted once a week, specifically three days after application. The&#13;
results showed that the application of synthetic insecticides was more effective than&#13;
bioinsecticides and botanical insecticides in reducing the severity of C. medinalis&#13;
infestations. The predator abundance did not differ significantly across all&#13;
treatments. The extent of P. canaliculata infestations was relatively low across all&#13;
treatments, influenced by irrigation management and manual snail removal.
</description>
<pubDate>Thu, 01 Jan 2026 00:00:00 GMT</pubDate>
<guid isPermaLink="false">http://repository.ipb.ac.id/handle/123456789/179852</guid>
<dc:date>2026-01-01T00:00:00Z</dc:date>
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