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Dwi Suci Rahayu
Indonesian Coffee and Cocoa Research Institute
Agriculture, Biological Sciences & Forestry

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Effect of Pollen Feed on Parasitization and Predatism of Cephalonomia stephanoderis onHypothenemus hampei Dwi Suci Rahayu; Endang Sulistyowati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 30 No 1 (2014)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v30i1.194

Abstract

Biological control of the coffee berry borer (Hypothenemus hampei)using parasitoid Cephalonomia stephanoderishas been developed through the improvement of the parasitoid role may using pollens as feed source. The objective of this study was to investigate the effect of cover crop and weed pollens on parasitization and predatism of C. stephanoderis.The applied treatments were pollens of Turnera ulmifolia, Arachis pintoi, Ageratum conyzoidesadded in glass tube that consist of 10 CBB pupaes and a mated female of C. stephanoderis. Number of pupae parasitized and pupae preyed were observed. The result showed that addition of A. Pintoi pollen increased the number of pupae parasitized at 135% whereas addition of T. ulmifolia and A. conyzoides pollens did not affect parasitization of C. Stephanoderis. The predatismof C. stephanoderiswas higher than parasitization to pupae of H. hampei which showed that the behavior of C. stephanoderiswas parasitization. Addition of T. ulmifolia, A. pintoi, and A. conyzoidespollens increased the number of pupae predatism at 132%, 102%, and 225%, respectively. Key words: Ageratum conyzoides, Arachis pintoi, Cephalonomia stephanoderis, Hypothenemus hampei,parasitization, predatism, pollens, Turnera ulmifolia
Abundance of Pollinator Insect (Forcipomyia spp .) of Cocoa Under Some Shade Trees Fakhrusy Zakariyya; Endang Sulistyowati; Dwi Suci Rahayu
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 32 No 2 (2016)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v32i2.230

Abstract

Cocoa production is affected by cocoa flowering and fruiting. The factor affects fruit seeting is pollinator agent such as Forcipomyia spp. Until now, information concerning population dynamics of Forcipomyia in some models of cocoa shading trees remains limited. This research was studied to observe the population dynamics of Forcipomyia spp. in some models of cocoa shading trees, namely lamtoro (Leucaena sp.), krete (Cassia surithensis) and areca nut (Areca catechu) in two main season of rainy and dry seasons. The research was conducted in Kaliwining research station of Indonesian Coffee and Cocoa Research Institute (ICCRI), Jember, by surveying the existing cocoa under different types of shading trees as mentioned above. The insects were observed using modified sticky trap method, whilst micro climate condition was also observed. The highest population was in January (rainy season) under Leucaena spp. shade tress and the lowest population was in October under all type of the shading trees. There was no relationship between microclimate condition under cocoa trees (temperature, RH and light intensity) and Forcipomyia spp. population (r = 0.08 and 0.04).
Development of Pratylenchus coffeae in Biochar Applied Soil, Coffee Roots and Its Effect on Plant Growth Dwi Suci Rahayu; Niken Puspita Sari
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 33 No 1 (2017)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v33i1.251

Abstract

Biochar improve physical, chemical and biological properties of soil. It may also be used as botanical pesticides. The experiment was aimed to determine the effect of biochar on population development of parasitic nematode Pratylenchus coffeae. The experiment was carried out in Nematology Laboratory and in a greenhouse of Indonesian Coffee and Cocoa Research Institute (ICCRI), Jember, Indonesia. The experiment was arranged according to completely randomized design with six treatments of biochar concentrations, i.e. 4%; 3%; 2%; 1%; 0.5% and 0% dry weight of soil. Research results revealed that biochar application of 4.0% was effectively killed 74.5% of P. coffeae, while the lowest mortality level of 37.5% at biochar 0.5% treatment. In the greenhouse trial, application of biochar 4.0% was the most effective in suppressing the population of parasitic nematode in coffee seedlings. Application of biochar was also able to increase the growth and biomass of coffee seedlings.
Auto-Dissemination of Beauveria Bassiana in Controlling Coffee Berry Borer Endang Sulistyowati; Dwi Suci Rahayu; Merle Shepard; Gerry Carner
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 33 No 2 (2017)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v33i2.265

Abstract

Coffee berry borer (CBB), Hypothenemus hampei Ferr. (Coleoptera, Scolytidae) is generally controlled by applying integrated pest management, particularly through sanitation and using biological agents. Beauveria bassiana is wellknown as an entomopathogenic fungus, which has been proven to be the most effective and prospective agent that could be developed to control CBB. Dissemination of microbial biocontrol agents via insect or predators may has advantages for safe spore dispersal to targeted pests with the added benefit of predation. The research with aim to determine if spores of B. bassiana can be picked up by CBB from disseminated containers had been conducted at Plant Protection Laboratory and Kaliwining Experimental Station of Indonesian Coffee and Cocoa Research Institute. Ten infected coffee berries and ten CBB adults were sprayed with various concentration of B. bassiana suspension, and then infested them in 10 healthy berries in petridish. The same trials was conducted in the field, by infested them to healthy berries on coffee branches. Observation was done on the percentage of infected berries and number of CBB infected by B. bassiana inside the berries. The results showed that spores of B. bassiana could be picked up by CBB from disseminated containers, although it was very low (2.5%). B. bassiana was not effective in suppressing CBB infestation by auto-dissemination, therefore to improve the effectiveness of B. bassiana in controlling CBB, it was advised to re-spray at least 3 times in every cropping season, especially at the flying time of CBB around 2 P.M.
Biological Control of Cocoa Pod Borer (Conopomorpha cramerella Snell) Using Egg Parasitoids of Trichogrammatoidea bactrae fumata in East Java Dwi Suci Rahayu; Endang Sulistyowati
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 34 No 1 (2018)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v34i1.307

Abstract

A study on the potential of  Trichogrammatoidea bactrae fumata  (Tbf) parasitization in the field was conducted at an insecticide-free cocoa cultivation namely Treblasala Plantation, Banyuwangi, East Java. The research design used was a factorial randomized block design with three replications. The tested treat-ments consisted of parasitoid release intervals (once in 2 and 4 weeks) and the release population of 0 (control); 25,000 and 50,000  Tbfper hectare per release. Observations were made on number of detected eggs and parasitized eggs, and level of cocoa damage caused by cocoa pod borer (CPB) attacks. The results of  this  research showed that parasitization level of  T.  bactrae fumata  on CPB eggs after3 months of the release ranged from 29.81–42.79%. The parasitoid release of CPB eggs (T. bactrae fumata) in the field for a year showed that the parasitiza-tion  level of CPB eggs in the field ranged from 17.78–29.72%. Nevertheless, during that year, there was no significant effect of parasitoid release on the suppression of yield loss due to CPB attacks in the field.
Diversity of Arthropods and Parasitic Nematodes Population in Intercropping Patterns of Robusta Coffee Dwi Suci Rahayu; Soekadar Wiryadiputra
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol 35 No 1 (2019)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v35i1.348

Abstract

Shade plants affect the microclimates around the plants which directly affect the population of arthropods, especially insects. Therefore, this research was needed to analyze the diversity and role composition of insects in Robusta coffee plantations based on different intensity of shade plants. Samplings of insects and parasitic nematodes were conducted in intercropping patterns of Robusta coffee namely mixed intercropping patterns, coffee-pepper intercropping patterns and coffee-banana intercropping patterns. In each intercropping pattern of Robusta coffee, samplings were conducted as much as ten plants using random sampling. Data analysis was done by calculating the Shannon-Wiener diversity index (H') and evenness index (E). The results showed that diversity index in all Robusta coffee intercropping patterns were < 3, indicating that the diversity of insects in all intercropping patterns was relatively. Insect diversity in coffee-pepper inter- cropping pattern is found higher than the one in either mixed intercropping pattern or coffee-banana intercropping patterns. Out of those intercropping patterns, insects from Formicidae family of Hymenoptera order was found to be the most dominant insects. The composition of insects in all of those three intercropping patterns has been mainly dominated by insects from the family of Formicidae and Hymenoptera order since they are natural enemy insects. Pratylenchus coffeaehas been confirmed as the most dominant nematode species in the three Robusta coffee intercropping pattern. P. coffeae had the highest population average of 3279 in coffee-pepper intercropping pattern.
Co-Authors Endang Sulistyowati Fakhrusy Zakariyya Gerry Carner Merle Shepard Niken Puspita sari Soekadar Wiryadiputra