scholarly journals Types of Weed and Their Potentials as the Host Plant of Parasitic Nematodes in Arabica and Robusta Coffee Plant in Kalibendo Banyuwangi

BIOEDUKASI ◽  
2018 ◽  
pp. 68
Author(s):  
Tommy Murdiono ◽  
Iis Nur Asyiah ◽  
Pujiastuti .

This study aimed to determine the type of weed and its potential as parasite nematode host plants in arabica and robusta plantations. This study included a qualitative exploratory research where weed sampling was carried out by roaming in the area of ​​Arabica and Robusta coffee plantations. Various types of weeds were taken, identified, and then extracted its root to find out the existence of nematodes. The result showed that there were 8 species of weeds where nematodes can be found in their roots. Those weeds were Tuton (Paspalum mandiocanum), Oxtail (Heliotropium indicum), Paku (Davallia denticulata), Pendul (Kyllinga brevifolia). Sintrong (Crassocephalum crepidioides), Bandotan (Ageratum conyzoides), Oplismenus hirtellus, Princess shame (Mimosa invisa). The result of nematodes identification revealed that it was Pratilenchus coffeae, a common parasitic nematode that attacks coffee.   Keywords: weed type, alternative weed nematode host, coffee

2018 ◽  
Vol 19 (1) ◽  
pp. 67-70 ◽  
Author(s):  
MUTALA’LIAH MUTALA’LIAH ◽  
SIWI INDARTI ◽  
NUGROHO SUSETYA PUTRA

Mutala’liah, Indarti S, Putra NS. 2018. Abundance and diversity of plant parasitic nematodes associated with BP 308 and BP 42 clones of robusta coffee in Java, Indonesia. Biodiversitas 19: 67-70. Plant parasitic nematodes are an important limiting factor in the productivity of coffee plantations. Clone resistance and soil texture influence the severity of plant infestation by parasitic nematodes. The aim of this research was to determine the diversity of plant parasitic nematodes in two clone of Robusta coffee (BP 308 and BP 42) on soils with different contents of sand. The research was carried out in Malangsari Field (East Java), Getas Field (Central Java) and Candiroto Field (Central Java). Nematodes were extracted from soil samples by the decanting method using a whitehead tray, while roots sample by the funnel spray method with a ‘mistifier’. Differences in diversity of nematode genera between clone and location combinations were analyzed by ANOVA. The results showed that there were five genera associated with Robusta coffee, i.e. Pratylenchus, Helicotylenchus, Radopholus, Rotylenchulus, and Meloidogyne. With clone BP 308 at the Malangsari Field site where soil contained 31.3 % sand, Pratylenchus was the most abundant genus i.e. 6 nematodes/100 mL soil. On the same clone, BP 308, at the Getas Field site where soil contained 26.9 % sand, Meloidogyne was the most abundant i.e. 14.4 nematodes/10 g roots. With clone BP 42 at the Candiroto Field site with 25.5 % sand in the soil, Pratylenchus was highly abundant i.e. 60 nematodes/10 g roots.


Author(s):  
Aris Wibawa ◽  
Fitria Yuliasmara ◽  
Rudy Erwiyono

Global warming is closely related with the amount of carbon stored in an ecosystem. A research to determine the amount of carbon stock in the coffee farms has been conducted in Sumberbaru and Silo Sub-districts in Jember district, Kaliwining Experimental Station (ES) in Jember district, Sumberasin ES in Malang district and Andungsari ES in Bondowoso district. Carbon stock was measured using the method of Rapid Carbon Stock’s Assessment (RaCSA) developed by ICRAF. Measurements were made on the observation plots of 200 m2, with 3 replications. Results of measurement of carbon stock on coffee plantations showed that the increased carbon stock was proportional with the age of plants. Carbon stock in coffee plantation depends on the shade tree system. In the monoculture coffee leucaena used as shade trees, the carbon stock was lower then in multistrata system (agroforestry) used several kinds of shade trees. Carbon stock on coffee plant in the estate more than smallholder. The average of carbon stock on Robusta coffee at the age of 30 years amounted to 29.38 Mg ha-1, it is greater than the carbon deposit on Arabica coffee that is 22.02 Mg ha-1.Key words: Carbon stock, coffee plantation, Arabica, Robusta, smallholder, agroforestri


Author(s):  
Dwi Suci Rahayu ◽  
Soekadar Wiryadiputra

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.


Nematology ◽  
2018 ◽  
Vol 20 (8) ◽  
pp. 713-727 ◽  
Author(s):  
Roman Christopher Blümel ◽  
Daniel F. Fischer ◽  
Florian M.W. Grundler

Summary Amino acid (AA) applications have been reported to affect plant-parasitic nematodes. Here, we analysed the effects of methionine (Met), lysine (Lys), threonine (Thr), isoleucine (Ile), homoserine (Hom) and tryptophan (Trp) on the sedentary plant-parasitic nematode, Heterodera schachtii, under in vitro conditions. No AA showed direct effects on the activity of infective second-stage juveniles (J2) of H. schachtii. Soaking J2 in Lys for 24 h increased the number of developing females and reduced the number of males. Thr treatments reduced the total number of nematodes developing in the host plant. The strongest effects were observed when AA were added to the nutrient medium in a monoxenic Arabidopsis thaliana culture. Ile, Met or Thr clearly reduced the number of female nematodes developing in the host plant. These AA are direct metabolic derivatives of Hom. Direct effects on pre-infective J2 can be differentiated from effects that may involve the host plant.


2021 ◽  
Vol 226 ◽  
pp. 00051
Author(s):  
Yohana Theresia Maria Astuti ◽  
Enny Rahayu ◽  
Tri Nugraha Budi Santosa ◽  
Dian Pratama Putra ◽  
Agus Solifudin ◽  
...  

This research aims to study the condition of the land, its relation to the character of the coffee plant in the farmers’ coffee plantation in the Sucen Village, Gemawang District, Temanggung, Indonesia. The research was carried out at a community coffee plantation in Sucen Village, Temanggung, Central Java, Indonesia. The research was conducted using descriptive and inferential statistics. Observation of performance with 30 samples was conducted by random sampling technique in three clones. Land suitability analysis was carried out at three observation points. The result showed that the vegetative character of BP 409 clones is better than BP 288 and BP 358. However, the highest production was obtained at BP 288. Land suitability in Sucen Village remains in the inappropriate criteria, which can be improved through land conservation and balanced fertilization.


2021 ◽  
Vol 22 (8) ◽  
Author(s):  
HAGUS TARNO ◽  
EYIK WIDYANSYAFICHA MARSUDI ◽  
TITI WIDJAYANTI ◽  
Yogo Setiawan

Abstract. Tarno H, Marsudi EW, Widjayanti T, Setiawan Y. 2021. Short Communication: Nematodes associated with Robusta coffee plantations in Malang District, East Java, Indonesia. Biodiversitas 22: 3306-3312. Coffee (Coffea spp.) is an important commodity in Indonesia. Nematodes have different roles, such as plant parasites and non-parasites, and are commonly found in the soil of coffee plantations. This research determined the ecological role, diversity, and abundance of nematodes in three coffee plantations in Malang District, East Java. We used a Whitehead tray to extract and isolate nematodes from the soil and root samples. Nematodes were identified based on their morphological characteristics. Analysis of variance and diversity indices were used to identify the differences among three coffee plantations. We identified eight nematode genera in the Ngantang sub-district site. In the Jatikerto Agrotechnopark and University of Brawijaya Forest sites, six genera were identified. Criconemoides, Pratylenchus, Xiphinema, Helicotylenchus are plant-parasitic nematodes, and Mononchus, Dorylaimus, Rhabditis, and Aphanolaimus are non-plant parasitic nematodes. Non-plant parasitic nematodes were more abundant than plant-parasitic nematodes in all sites. Non-plant parasitic nematode, Dorylaimus was the dominant genus in this study (272 individuals), ca. 35% of the total nematodes collected. In this study, the differences between coffee plantations and soil pH influence nematode abundance. The nematode abundance increases when the soil pH is lower.


Author(s):  
Marcin W. Zielonka ◽  
Tom W. Pope ◽  
Simon R. Leather

Abstract The carnation tortrix moth, Cacoecimorpha pronubana (Hübner, [1799]) (Lepidoptera: Tortricidae), is one of the most economically important insect species affecting the horticultural industry in the UK. The larvae consume foliage, flowers or fruits, and/or rolls leaves together with silken threads, negatively affecting the growth and/or aesthetics of the crop. In order to understand the polyphagous behaviour of this species within an ornamental crop habitat, we hypothesized that different host plant species affect its life history traits differently. This study investigated the effects of the host plant species on larval and pupal durations and sizes, and fecundity (the number of eggs and the number and size of egg clutches). At 20°C, 60% RH and a 16L:8D photoperiod larvae developed 10, 14, 20 and 36 days faster when reared on Christmas berry, Photinia (Rosaceae), than on cherry laurel, Prunus laurocerasus (Rosaceae), New Zealand broadleaf, Griselinia littoralis (Griseliniaceae), Mexican orange, Choisya ternata (Rutaceae), and firethorn, Pyracantha angustifolia (Rosaceae), respectively. Female pupae were 23.8 mg heavier than male pupae, and pupal weight was significantly correlated with the duration of larval development. The lowest and the highest mean numbers of eggs were produced by females reared on Pyracantha (41) and Photinia (202), respectively. Clutch size differed significantly among moths reared on different host plants, although the total number of eggs did not differ. This study showed that different ornamental host plants affect the development of C. pronubana differently. Improved understanding of the influence of host plant on the moth's life history parameters measured here will help in determining the economic impact that this species may have within the ornamental plant production environment, and may be used in developing more accurate crop protection methodologies within integrated pest management of this insect.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Belén Cotes ◽  
Gunda Thöming ◽  
Carol V. Amaya-Gómez ◽  
Ondřej Novák ◽  
Christian Nansen

AbstractRoot-associated entomopathogenic fungi (R-AEF) indirectly influence herbivorous insect performance. However, host plant-R-AEF interactions and R-AEF as biological control agents have been studied independently and without much attention to the potential synergy between these functional traits. In this study, we evaluated behavioral responses of cabbage root flies [Delia radicum L. (Diptera: Anthomyiidae)] to a host plant (white cabbage cabbage Brassica oleracea var. capitata f. alba cv. Castello L.) with and without the R-AEF Metarhizium brunneum (Petch). We performed experiments on leaf reflectance, phytohormonal composition and host plant location behavior (behavioral processes that contribute to locating and selecting an adequate host plant in the environment). Compared to control host plants, R-AEF inoculation caused, on one hand, a decrease in reflectance of host plant leaves in the near-infrared portion of the radiometric spectrum and, on the other, an increase in the production of jasmonic, (+)-7-iso-jasmonoyl-l-isoleucine and salicylic acid in certain parts of the host plant. Under both greenhouse and field settings, landing and oviposition by cabbage root fly females were positively affected by R-AEF inoculation of host plants. The fungal-induced change in leaf reflectance may have altered visual cues used by the cabbage root flies in their host plant selection. This is the first study providing evidence for the hypothesis that R-AEF manipulate the suitability of their host plant to attract herbivorous insects.


Nematology ◽  
2004 ◽  
Vol 6 (3) ◽  
pp. 375-387 ◽  
Author(s):  
N. Aileen Ryan ◽  
Peter Jones

AbstractSeventy bacteria, isolated from the rhizosphere of the potato cyst nematode (PCN) host plant, potato, were cultured in the presence and absence of potato root leachate (PRL) and the resultant culture filtrates were analysed for their ability to affect the hatch in vitro of the two PCN species. Of the isolates tested, nine had a significant effect on PCN hatch. Six affected Globodera pallida hatch and three affected G. rostochiensis hatch. Five of the isolates significantly increased hatch only when cultured in the presence of PRL. Three of the isolates decreased PCN hatch significantly in PRL. Only one isolate increased hatch significantly in the absence of PRL. No isolate affected the hatch of both species. Six of the nine isolates that significantly affected PCN hatch had been pre-selected by culturing on PRL. Bacterial isolates from PCN non-hosts (14 from wheat, 17 from sugar beet) were also tested for hatching activity. The principal effect of the hatch-active isolates from the PCN non-host plants was to increase PCN hatch in the presence of PRL. In contrast to the host bacteria results, the isolates from non-host plants affected only G. rostochiensis hatch (three wheat isolates and four sugar beet isolates significantly increased G. rostochiensis hatch); no such isolate affected G. pallida hatch significantly in the presence of PRL. Ten isolates (32%) from non-host plants had the ability to increase significantly the hatch of PCN in the absence of PRL (eight of these affected G. rostochiensis hatch and four affected G. pallida hatch), compared to only one bacterial isolate (1%) from a host plant. The majority of the isolates from non-hosts produced PCN species-specific effects, as with the bacteria isolated from potatoes, although two wheat isolates increased the hatch of both species significantly in the absence of PRL. Of 20 hatch-active bacterial isolates (from all three plants) identified, 70% were Bacillus spp. Other genera identified were Arthrobacter , Acinetobacter and Staphylococcus .


Author(s):  
C. Booth

Abstract A description is provided for Calonectria rigidiuscula[Nectria rigidiuscula]. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Theobroma cacao and many other hosts represented by the following families: Anonaceae, Anacardiaceae, Apocynaceae, Bombacaceae, Euphorbiaceae, Gramineae, Leguminosae, Malvaceae, Meliaceae, Moraceae, Sterculiaceae, Tiliaceae. Also pathogenic on wound inoculation to hosts in the above and following additional families: Bignoniaceae and Ulmaceae (31: 232). DISEASES: Causing die-back and canker of branches associated with capsid injury, 'green-point' cushion gall of buds, and pod rot of cacao; panel decay of Hevea rubber associated with Pbytophthora spp. ; stem canker of robusta coffee associated with Xyleborus morstatta; stem rot of durian; and blight of rice plants including grain. GEOGRAPHICAL DISTRIBUTION: Africa (Cameroons, Central African Republic, Congo, Ghana, Ivory Coast, Madagascar, Nigeria, Sierra Leone); North America [United States (Okla.)]; Central America and West Indies (British Guiana, Costa Rica, Grenada, Guatemala, Honduras, Panama, Trinidad); South America (Argentina, Colombia, Surinam, Venezuela); Asia (Ceylon, India, Indo-China, Java, Malaya, Philippines); Australasia & Oceania (New Caledonia, North Borneo, Tahiti). TRANSMISSION: By air-borne spores, either microconidia produced on recently infected tissue of injured, living stems, or macroconidia from sporodochia on recently dead stems, or ascospores from perithecia produced on long dead stems or cracks in bark (25: 548). The pathogen has been transmitted to cacao cotyledons by means of mealybugs (Pseudococcus njalensis[Planococcoides njalensis] and Ferrisiana virgata[Ferrisia virgata]) in the laboratory, but not elsewhere. Also a soil invader commonly recovered from previous sites of cacao (13: 128, 594) or coffee plantations (34: 179), and in grassland areas (33: 687); seed-borne on rice (32: 449).


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