THE ESTABLISHMENT OF PROCECIDOCHARES CONNEXA IN WEST JAVA, INDONESIA : A BIOLOGICAL CONTROL AGENT OF CHROMOLAENA ODORATA

Abstract. Authors. 2019. A new trophic interaction between invasive weed, its biological control agent, and local insects: a case study of Chromolaena odorata. Biodiversitas 20: 1006-1011. Invasive species have been known to cause biotic homogenization. The presence of Chromolaena odorata, an alien invasive weed, in agricultural habitat has outcompeted many crop plants. The presence of alien invasive weed creates a new trophic interaction especially with local herbivores as well as other associate insects. This study was aimed to investigate a new trophic interaction that has been established between C. odorata, its introduced biological control agent, and local insects. The research was conducted in various land-use types in both of Arjuno and Bromo mountain landscape. In each landscape, we surveyed the population density of C. odorata and its biological control agent (a gall fly, Cecidochares connexa) as well as observed the diversity and abundance of other insects associated with C. odorata. Samples were taken along the transect lines at various altitudinal gradients, from 400 to 1100 m asl. In total, 124 species of insects were found associated with C. odorata which include herbivores, parasitoids, and predators. The difference of land-use types affected the population density of C. odorata but not its herbivores (i.e. C. connexa and aphids). A new association was found between the introduced insect, C. connexa and local parasitoids. The field survey also discovered new associations between the invasive weed with local herbivores such as aphids that are found with high abundance. The aphids were found to have a symbiosis interaction with ants such as Anoplolepis gracilipes (invasive species) and Dolichoderus thoracicus. In conclusion, the ecological consequence of the presence of invasive weed species is the shaping of a new trophic interaction with local insects, even with other invasive ant species. This interaction arguably is part of an ecological process that formed an equilibrium interaction which may cause either a negative or positive impact on C. odorata.

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Temperature-dependent performance and potential distribution of Pareuchaetes insulata, a biological control agent of Chromolaena odorata in South Africa

BioControl ◽

10.1007/s10526-016-9760-1 ◽

2016 ◽

Vol 61 (6) ◽

pp. 815-825 ◽

Cited By ~ 2

Author(s):

Osariyekemwen O. Uyi ◽

Costas Zachariades ◽

Martin P. Hill ◽

Andrew J. McConnachie

Keyword(s):

South Africa ◽

Biological Control ◽

Potential Distribution ◽

Biological Control Agent ◽

Control Agent ◽

Chromolaena Odorata ◽

Temperature Dependent

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A new report of three parasitoids of the cogongrass gall-midge Orseolia javanica Kieffer & Van Leeuwen-Reijnvaan (Diptera: Cecidomyiidae) in Bogor West Java

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/948/1/012019 ◽

2021 ◽

Vol 948 (1) ◽

pp. 012019

Author(s):

M N Maqalina ◽

I S Harahap ◽

P Hidayat

Keyword(s):

Biological Control ◽

Biological Control Agent ◽

Gall Midge ◽

Morphological Characters ◽

Control Agent ◽

Imperata Cylindrica ◽

West Java ◽

Population Collapse

Abstract The cogongrass gall midge, Orseolia javanica, has been identified as a biological control agent with the ability to specifically attack cogongrass (Imperata cylindrica) or known in Indonesia as alang-alang. However, in the field, the cogongrass gall midge has a high parasitism by insect parasitoids, which could lead to population collapse. Information regarding the insect parasitoids of the cogongrass gall midge is a very limited. The objectives of this study was to describe and identify the new reported cogongrass gall midge parasitoids in Gunung Gadung cemetery in Cipaku, South Bogor District, Bogor. This study was conducted by taking the cogongrass galls in the field, maintaining in the laboratory, identificating the parasitoids, and calculating the percentage of parasitism. The study has been conducted from August 2020 to May 2021. Three new reported parasitoids were identified on O. javanica in addition to five already known parasitoid, they were Eurytoma sp. (Hymenoptera: Eurytomidae), Lamprotatus sp. (Hymenoptera: Pteromalidae), and Nigeriella sp. (Hymenoptera: Agaonidae). These parasitoids may be able to reduce the effectiveness of the cogongrass gall-midge in controlling the cogongrass. Their morphological characters, descriptions, and percentage of parasitism are presented.

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Study of Insect Diversity in Rice Agroecosystem in Karawang West Java

Jurnal ILMU DASAR ◽

10.19184/jid.v19i1.5619 ◽

2018 ◽

Vol 19 (1) ◽

pp. 51

Author(s):

Siti Latifatus Siriyah ◽

Miftakhul B.R. Khamid ◽

Fawzy M Bayfurqon

Keyword(s):

Biological Control ◽

Rice Field ◽

Biological Control Agent ◽

Insect Pest ◽

Light Trap ◽

Control Agent ◽

Rice Fields ◽

Insect Diversity ◽

Potential Candidate ◽

West Java

Insects were collected from rice fields in Karawang West Java. Since insects are dominant in Rice field, their role in the ecosystem are important regarding the rice production. Therefore, the occurance of insect species and their role in ecosystem are important to understand. The aim of this reasearch was to study the insect occurance in rice field in Karawang to obtain the potential candidate for biological control agent. The insects were collected using sweep net, pit fall trap and light trap. Nine insect orders were collected and 49 morphospecies were identified including insect pest, parasitoids, predator, tourist and detritivore. Paederus sp., Cyrtohinus and Micraspis sp., were the most abundant entomophagous insect that is potential candidate for biological control agent in Karawang. Keywords: insect, insect diversity, rice fields, karawang

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Laboratory studies on the biology and host range of Dichrorampha odorata (Lepidoptera: Tortricidae), a biological control agent for Chromolaena odorata (Asteraceae)

Biocontrol Science and Technology ◽

10.1080/09583157.2016.1274879 ◽

2017 ◽

Vol 27 (2) ◽

pp. 222-236 ◽

Cited By ~ 3

Author(s):

Nontembeko Dube ◽

Costas Zachariades ◽

Thinandavha C. Munyai ◽

Osariyekemwen O. Uyi

Keyword(s):

Biological Control ◽

Host Range ◽

Biological Control Agent ◽

Control Agent ◽

Laboratory Studies ◽

Chromolaena Odorata

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Reoccurrence of Pareuchaetes pseudoinsulata Rego Barros (Arctiidae: Lepidoptera) population in Thiruvananthapuram district of Kerala, India: A biological control agent of the weed, Chromolaena odorata (Asteraceae)

Journal of Biological Control ◽

10.18311/jbc/2016/15595 ◽

2017 ◽

Vol 30 (3) ◽

pp. 195

Author(s):

C. P. Arjun ◽

V. Sarojkumar ◽

N. P. Sooraj ◽

V. R. Prakash ◽

R. Jaishanker ◽

...

Keyword(s):

Biological Control ◽

Biological Control Agent ◽

Control Agent ◽

Axillary Buds ◽

Chromolaena Odorata ◽

Field Release ◽

Pareuchaetes Pseudoinsulata ◽

Resistant Population

Authors report the reoccurrence of Pareuchaetes pseudoinsulata Rego Barros larvae at Technopark campus, Thiruvananthapuram. The larvae of P. pseudoinsulata were found feeding voraciously on terminal and axillary buds and leaves of Chromolena odorata. The recent report helps to identify the elite and resistant population for further field release to control C. odorata.

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