Narrow vessels cavitate first during a simulated drought in Eucalyptus camaldulensis

2021 ◽  
Author(s):  
Barigah Têtè Sévérien ◽  
Javier Enrique Gyenge ◽  
Florencia Barreto ◽  
Philippe Rozenberg ◽  
María Elena Fernández
Keyword(s):  
Eucalyptus Camaldulensis ◽  
Simulated Drought

Identification and phytotoxicity of phenolic compounds in Eucalyptus camaldulensis

2018 ◽  
Vol 44 (1) ◽  
pp. 93-106 ◽  
Author(s):  
A. Grichi ◽  
Z. Nasr ◽  
M.L. Khouja
Keyword(s):  
Phenolic Compounds ◽  
Eucalyptus Camaldulensis

KARRA:KARRAWIRRAPARRI-RIVER RED GUM-EUCALYPTUS CAMALDULENSIS

2003 ◽  
Vol 8 (1) ◽  
pp. 51-56
Author(s):  
Vivonne Thwaites
Keyword(s):  
Eucalyptus Camaldulensis ◽  
River Red Gum

ALTURA E SOBREVIVÊNCIA DE Eucalyptus camaldulensis Dehnh EM DIFERENTES ESPAÇAMENTOS AOS 14 MESES APÓS PLANTIO EM CAMPO EM ALVORADA DO GURGUÉIA –PIAUÍ

2018 ◽  
Author(s):  
Silva Raynara Ferreira da ◽  
Sousa Moema Barbosa de ◽  
Silva Aluísio Costa ◽  
Marinho Eduardo Silva ◽  
Dias Bruna Anair Souto
Keyword(s):  
Eucalyptus Camaldulensis ◽  
Eucalyptus Camaldulensis Dehnh

Efficacy of some indigenous plants and a synthetic insecticide for the control of Tribolium castaneum (herbst.) (coleoptera: tenebrionidae)

2016 ◽  
Vol 5 (01) ◽  
pp. 4742
Author(s):  
Mumtaz Akhtar ◽  
Naheed Akhtar* ◽  
Muhammad Arshad ◽  
Naima Iram ◽  
Muhammad Iqbal ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Eucalyptus Camaldulensis ◽  
Ethanol Extract ◽  
Cumulative Effects ◽  
Piper Nigrum ◽  
Paper Test ◽  
Indigenous Plants ◽  
Synthetic Insecticide ◽  
Insecticidal Action ◽  
Coleoptera Tenebrionidae

Research studies were carried out to evaluate insecticidal action of two plant products and a synthetic insecticide on a major stored-product insect, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). The plant species studied were, Piper nigrum and Eucalyptus camaldulensis, whereas methoprene used as synthetic insecticide. Two formulations viz., powder and ethanol extract of each plant and four concentrations (5ppm, 10ppm, 15ppm and 20 ppm) of methoprene were tested. Repellency was tested using the filter paper test whereas mortality, weight loss protection and anti-feedant potential of all treatments was evaluated by using whole maize grains. Our results were highly significant as compared to control however; P. nigrum was more effective as compared to E. camaldulensis. The investigation of cumulative effects of botanical and synthetic insecticide and isolation of active ingredients of botanicals are further issues to be investigated for their inclusion in. I. P. M programs.

Lethal and Sublethal Effects of Eucalyptus camaldulensis and Mentha piperita Essential Oils on the Khapra Beetle (Coleoptera: Dermestidae) in Terms of Feeding Inhibition, Oviposition, and Seed Damage

2021 ◽  
Author(s):  
Ehsan Borzoui ◽  
Ramin Khaghani ◽  
Gadir Nouri-Ganbalani
Keyword(s):  
Essential Oils ◽  
Sublethal Effects ◽  
Management Strategies ◽  
Eucalyptus Camaldulensis ◽  
Choice Test ◽  
Mentha Piperita ◽  
Growth Stages ◽  
Fumigant Toxicity ◽  
Khapra Beetle ◽  
Wheat Seeds

Abstract Trogoderma granarium Everts, the Khapra beetle, is a major pest of stored products, especially grains. In this study, fumigant toxicity and sublethal effects of Eucalyptus camaldulensis Dehnh. (Myrtaceae) and Mentha piperita L. (Lamiaceae) essential oils (EOs) were investigated against different growth stages of T. granarium. To assess the sublethal effects, insects were exposed to an LC20 or LC50 concentration of each essential oil, and the ability of these oils to deter feeding, oviposition, and damage to wheat seeds and overall mass were surveyed. At LC50 concentrations, M. piperita EO showed higher fumigant toxicity than E. camaldulensis EO against eggs, 2nd instar larvae, 4th instar larvae, and adults of T. granarium. Furthermore, the adults were more sensitive to the tested EOs than immatures. In free-choice tests, both larvae and adults showed a preference for control-treated wheat seeds than for seeds treated with an LC20 or LC50 concentration of EOs from E. camaldulensis or M. piperita. In a no-choice test, adult females exposed to EOs showed lower fecundity and fertility in comparison to control females not exposed to EOs. Treatment of wheat seeds with E. camaldulensis or M. piperita EOs resulted in a dose-specific reduction in the number of damaged seeds and seed weight loss when compared to control. According to our results, both tested EOs, especially EOs extracted from M. piperita, showed good potential for use in integrated pest management strategies against T. granarium.

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