Hery Pratiknyo
Fakultas Biologi, Universitas Jenderal Soedirman Purwokerto

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A Life Table of Spodoptera litura Fabr. with Different Artificial Diets Lestari, Sri; Ambarningrum, Trisnowati Budi; Pratiknyo, Hery
Jurnal Sain Veteriner Vol 31, No 2 (2013)
Publisher : Fakultas Kedokteran Hewan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Abstract Sustainable insect supply is a routine activity in research of pest control, experimental insecticide bioassay, entomophatogen, parasitoid, and nature of competitor. Armyworm (Spodoptera litura Fabr.) is one of the alternative test insect. A mass rearing method is required to provide high demands of S. litura. A life table of insect is regularly used to study several biological parameters including the net reproduction rate of population (Ro), the mean length of life period in one generation (T), reproduction potential value of one generation from a population (rm), and the potential of a population to multiply in one generation (ë). The aim of this study were to asses the development time and reproduction potential of S. litura which different of artificial diets. Results showed that S. litura on artificial diet in recipe of Singh and Moore is T = 29,90, R = 2692,33, r = 0,26, ë = 1,29, o m whereas artificial diet in recipe of Waldbauer et al. is 32,29, R = 891,99, r = 0,21, ë = 1,23. o m
A Life Table of Spodoptera litura Fabr. with Different Artificial Diets Lestari, Sri; Ambarningrum, Trisnowati Budi; Pratiknyo, Hery
Jurnal Sain Veteriner Vol 31, No 2 (2013): DESEMBER
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.22146/jsv.3801

Abstract

Abstract Sustainable insect supply is a routine activity in research of pest control, experimental insecticide bioassay, entomophatogen, parasitoid, and nature of competitor. Armyworm (Spodoptera litura Fabr.) is one of the alternative test insect. A mass rearing method is required to provide high demands of S. litura. A life table of insect is regularly used to study several biological parameters including the net reproduction rate of population (Ro), the mean length of life period in one generation (T), reproduction potential value of one generation from a population (rm), and the potential of a population to multiply in one generation (ë). The aim of this study were to asses the development time and reproduction potential of S. litura which different of artificial diets. Results showed that S. litura on artificial diet in recipe of Singh and Moore is T = 29,90, R = 2692,33, r = 0,26, ë = 1,29, o m whereas artificial diet in recipe of Waldbauer et al. is 32,29, R = 891,99, r = 0,21, ë = 1,23. o m
Populasi Tungau Parasit Varroa jacobsoni: Penyebab Kematian Pupa dan Korelasinya terhadap Produksi Madu Apis cerana pada Sisiran Sarang Membujur dan Melintang Pratiknyo, Hery; Darsono, Darsono
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 3 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.3.248

Abstract

Bee keeping of local bee (Apis cerana Fab.) in Purbalingga Regency is spread widely from  25 m to 350 m asl, eventhough quatatively the production is still low. It is caused by parasitic mite attack,  Varroa jacobsoni. This mite attack then suck haemolymph of the pupae,  meanwhile if the bee comb cell  consist of more than one mites, the pupae will die, consequently the honey production will decrease. The aims of the research are: 1) to know a mount of individual mite living and caused the death of one bee pupae, .2) to define the correlationship between density of parasitic mite and honey production, 3). To differ parasite mite V. jacobsoni  density in longitudinal and cross posision of combs.  Method used was survey with purposive random sampling tehnique on two posision of bee comb, 15 samples were taken in each posision.  The data were analyzed  by counting the amount of mite living on every dead pupae and the correlation was analyzed for the relationship between relative density of parasite mite and  honey production. The result shows that correlation between relative density of parasitic mite and honey production is unsignificant. Conclusion of the research are: 1) amount of  parasitic mite living on bee pupae and causing death is 5,80 individual on cross posisition comb and 4,71 individual on longitudinal posision comb. 2) correlation between relative density of parasitic mite and honey production is unsignificant. 3). The relative density of parasitic mite between two posisions of comb is unsignificant.
Kajian Status Resistensi Tungau Hama Brevipapalpus phoenicis dan Tungau Predator Ambleyseius deleoni sebagai Dasar Evaluasi Aplikasi Pestisida Pratiknyo, Hery; Basuki, Edi
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 26, No 2 (2009)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2009.26.2.115

Abstract

The Increasing demand of tea product this decade causes the tea become prospective commodity. In other hand, free residual of pesticide in the tea culture could inhibit the rise of this demand. Therefore the evaluation of pesticide application policy in the field should be conducted, especially in term of the effect of the residual of pesticide on the resistance status of the mite. The research had been done using survey and experimental methods. The aim of the research was to decide the resistance status of the pest mite of tea leaf Brevipalpus phoenicis and it main predatory mite Ambleyseius deleoni on the application of three kind of pesticides (herbicide, fungicide and acaricide), and its effect on predator-prey feeding link. The result shows that both B. Phoenicis and A. deleoni are still resistant to herbicide (Round Up 486 AS) and fungicide (Kocide 77WP), but they are susceptible on acaricide (Kelthane 200EC). Also pesticide application has no effect significantly on predator-prey link (predation level). The conclusion is pest mite B. phoenicis is resistant on fungicide (Kocide 77WP) and Herbicide (Round Up 486 AS) but it is not resistance on Acaricide (Kelthane 200EC). Application of pesticides has no effect significantly on predator-prey link (predation level), so predatory mite A. deleoni is still effective in biological control for its prey.
HUBUNGAN ANTARA KERAGAMAN TUNGAU FAMILI Macrochelidae (ACARI: MESOSTIGMATA) DAN FAKTOR LINGKUNGAN PADA MANUR AYAM PEDAGING DENGAN TIPE KANDANG PEMELIHARAAN BERBEDA Firmansyah, Nurhadi Eko; Budianto, Bambang Heru; Pratiknyo, Hery
Scripta Biologica Articles in Press
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

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Abstract

Livestock of broiler chickens using several types of cages, including the type of litter stage and litter postal. Treatment of chicken manure in both types of cages will cause the condition of the manure as the habitat of mite family Macrochelidae will be different. The diversity of mites family Macrochelidae are suspected to be different in manure found on stage litter cages compared to litter postal cages and influenced by some environmental factors. The aim of this study is to analyze the diversity of mites family Macrochelidae and its relation to environmental factors. The obtained manure sample was then taken to the laboratory and placed on a modified Barlese-Tullgren for mite isolation. The mites obtained are then counted, preserved, and identified at the Laboratory. Environmental factors measured are temperature and humidity. The diversity data obtained were analyzed using the Shannon-Wiener index and the Shannon-Evennes index. Pearson correlation test to determine the relationship between temperature and humidity to the diversity of mites of Macrochelidae family. Five species of mite Macrochelidae are Macrocheles sp.1, Macrocheles sp.2, Glyptholaspis sp., Neopodocinum sp., Holostaspella sp. The diversity index of mites family Macrochelidae on manure litter stage is 0.81354. The index diversity of mites on manure litter postal is 0.79871. The humidity factor influences the diversity of the mites of family Macrochelidae in both types of cages.