Weaver ants,Oecophylla smaragdina(Hymenoptera: Formicidae), as biocontrol agents on African mahogany trees,Khaya senegalensis(Sapindales: Meliaceae), in the Northern Territory of Australia

2010 ◽  
Vol 56 (4) ◽  
pp. 363-370 ◽  
Author(s):  
Renkang Peng ◽  
Keith Christian ◽  
Don Reilly
Keyword(s):  
Northern Territory ◽  
Biocontrol Agents ◽  
Oecophylla Smaragdina ◽  
Weaver Ants ◽  
African Mahogany ◽  
Khaya Senegalensis

scholarly journals Nutritional status and biomass of african mahogany seedlings grown with nutrient solution in the Northern Amazon

2020 ◽  
Vol 30 (4) ◽  
pp. 958-970
Author(s):  
Oscar José Smiderle ◽  
Aline Das Graças Souza ◽  
Edvan Alves Chagas ◽  
Marcia Souza Alves ◽  
Paulo Renato de Oliveira Fagundes
Keyword(s):  
Nutritional Status ◽  
Nutrient Solution ◽  
African Mahogany ◽  
Khaya Senegalensis

O objetivo neste trabalho foi determinar aspectos sobre variáveis de crescimento e partição de massa seca das mudas de Khaya senegalensis, bem como a marcha de absorção de nutrientes, em função das épocas e adubação mineral. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 2 x 6. Dois níveis do fator solução nutritiva (sem e com adição) e seis níveis para o fator período (0; 60; 80; 100; 120 e 140 dias). Foram utilizadas 4 repetições, sendo cada uma delas composta de 10 mudas. Para avaliação da qualidade das mudas, consideraram-se os parâmetros morfológicos, relações e índices de qualidade: altura da parte aérea (H; cm); diâmetro do coleto (DC; mm); massa seca da parte aérea (MSPA; g planta-1); massa seca da raiz (MSR; g planta-1); massa seca total (MST = MSPA + MSR; g planta-1); relação massa seca da parte aérea e massa seca da raiz (MSPA/MSR); índice de robustez (IR= H/DC; cm mm-1); e índice de qualidade de Dickson (IQD) e o acúmulo de macronutrientes na parte aérea e sistemaradicular. A adição de solução é recomendada para mudas de Khaya senegalensis a partir da época 100 dias após o transplantio em viveiro de telado na Amazônia setentrional. A manutenção das mudas de Khaya senegalensis com uso de solução nutritiva proporciona as melhores condições para o aproveitamento dos macronutrientes e permite obter mudas aptas para campo em 140 dias após o transplantio em viveiro de telado em Roraima.

scholarly journals Rooting of African mahogany (Khaya senegalensis A. Juss.) leafy stem cuttings under different concentrations of indole-3-butyric acid

2016 ◽  
Vol 11 (23) ◽  
pp. 2050-2057 ◽  
Author(s):  
Ten oacute rio de Vasconcelos Rodrigo ◽  
Valiengo Valeri S eacute rgio ◽  
Baldo Geraldo Martins Antonio ◽  
Biagiotti Gabriel ◽  
Aparecida Pereira Perez Bruna
Keyword(s):  
Butyric Acid ◽  
Stem Cuttings ◽  
African Mahogany ◽  
Khaya Senegalensis

The abundance of native insects on the introduced weed Mimosa pigra in Northern Australia

1990 ◽  
Vol 6 (2) ◽  
pp. 219-230 ◽  
Author(s):  
G. J. Flanagan ◽  
C. G. Wilson ◽  
J. D. Gillett
Keyword(s):  
Central America ◽  
Northern Territory ◽  
Biocontrol Agents ◽  
Phytophagous Insect ◽  
Northern Australia ◽  
Insect Community ◽  
Wet Season ◽  
Mimosa Pigra ◽  
Monospecific Stand ◽  
Total Community

ABSTRACTA monospecific stand of the alien shrub Mimosa pigra (Mimosaceae) was examined weekly for 14 months from March 1984. A total of 44 phytophagous insect species were found on M. pigra. The five most abundant of these made up 74% of the total community. This insect community in general showed a distinct seasonal cycle of abundance with maximum numbers during the wet season. However, a few species had a completely different pattern.Two species, Mictis profana (Hemiptera: Coreidae) and Platymopsis humeralis (Coleoptera: Cerambycidae), were observed to cause substantial damage to M. pigra. When compared with the fauna of M. pigra from its native region, Central America, that of the Northern Territory is low in leaf and flower-feeding insects. It is suggested that these types of insects be sought as future biocontrol agents to complement those native insects causing damage and those biocontrol agents already released.

Observations on the Ecology of Weaver Ants (Oecophylla smaragdina Fabricius) in a Thai Mangrove Ecosystem and Their Effect on Herbivory of Rhizophora mucronata Lam.

Biotropica ◽  
2004 ◽  
Vol 36 (3) ◽  
pp. 344-351 ◽  
Author(s):  
Joachim Offenberg ◽  
Sopon Havanon ◽  
Sanit Aksornkoae ◽  
Donald J. Macintosh ◽  
Mogens Gissel Nielsen
Keyword(s):  
Mangrove Ecosystem ◽  
Rhizophora Mucronata ◽  
Oecophylla Smaragdina ◽  
Weaver Ants

scholarly journals Overlooked Scents: Chemical Profile of Soma, Volatile Emissions and Trails of the Green Tree Ant, Oecophylla smaragdina

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2112
Author(s):  
Vivek Kempraj ◽  
Soo Jean Park ◽  
Stefano De Faveri ◽  
Phillip W. Taylor
Keyword(s):  
Chemical Ecology ◽  
Knowledge Gap ◽  
Chemical Profile ◽  
Oecophylla Smaragdina ◽  
Headspace Volatiles ◽  
Weaver Ants ◽  
Weaver Ant ◽  
Volatile Emissions ◽  
Poison Glands

The green tree ant, Oecophylla smaragdina, is one of only two recognized species of weaver ants. While the identity and functions of chemicals produced and emitted by its congener O. longinoda have been studied quite extensively and serve as a valuable model in chemical ecology research, little comparable information is available about O. smaragdina. Although some analyses of chemicals produced and emitted by O. smaragdina have been reported, the literature is fragmentary and incomplete for this species. To address this knowledge gap, and to enable comparisons in the chemical ecology of the two weaver ant species, we here describe diverse chemicals from the cuticle, Dufour’s glands, poison glands, head, headspace volatiles, and trails of O. smaragdina.

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