Severity of dry bean anthracnose and tomato early blight under different concentrations of neem oil in greenhouse
DOI:
https://doi.org/10.70151/q0pksw33Keywords:
Azadirachta indica, Colletotrichum lindemuthianum, Alternaria solani, alternative controlAbstract
Dry bean plants, which were grown in greenhouse, were sprayed with neem oil (Azadirachta indica A. de Jussieu) at 0.5, 1.0 and 1.5%, 48, 24 and 2 h before and 24, 48 and 72 h after the inoculation with Colletotrichum lindemuthianum, the causal agent of anthracnose. Tomato plants, under the same conditions, were also sprayed with neem oil at 0.5 and 1.0%, 74, 50, 26 and 2 h before and 24, 30, 48 and 54 h after the inoculation with Alternaria solani. The growth of C. lindemuthianum and A. solani was measured in vitro with different concentrations of neem oil and has shown differences among treatments. The severity of dry bean anthracnose was not affected by neem oil but the severity of tomato early blight was lower when neem was applied at 1% 2 h before the inoculation.
Downloads
References
AMADIOHA, A.C. Controlling rice blast in vitro and in vivo with extracts of Azadirachta indica. Crop Protection, v. 19, n.5, p.287-90, 2000.
BIANCHINI, A.; MARINGONI, A.C.; CARNEIRO, S.M.T.P.G. Doenças do Feijoeiro. In: KIMATI, H. et al. Manual de fitopatologia: doenças de plantas cultivadas. 3. ed. São Paulo: Agronômica Ceres, 1997. p.376-99.
CANTERI, M.G., DALLA PRIA, M., AMORIM, L., BERGAMIN FILHO, A. Efeito curativo de fungicidas no controle da antracnose e da mancha angular do feijoeiro em câmara de crescimento. Fitopatologia Brasileira, v.23, n.4, p.471-3, 1998.
CARNEIRO, S.M.T.P.G. Raças fisiológicas de Colletotrichum lindemuthianum no Estado do Paraná. Summa Phytopathologica, v.25, n.3, p.275-8, 1999.
CARNEIRO, S.M.T.P.G. Efeito de extratos de folhas e do óleo de nim sobre oídio do tomateiro. Summa Phytopathologica, v.29, n.3, p.262-5, 2003.
CHATTOPADHYAY, C. Yield loss attributable to Alternaria blight of sunflower (Helianthus annuus L.) in India and some potentially effective control measures. International Journal of Pest Management, v.45, n. 1, p.15-21, 1999.
COVENTRY, E.; ALLAN, E.J. The effect of neem-based products on bacterial and fungal growth. In: KLEEBERG, H; ZEBITZ, C.P.W. Practice oriented results on use and production of neem-ingredients and pheromones. Wetzlar: Druck & Grabhic, 1997. p.237-42.
+1
LOPES, C.A.; SANTOS, J.R.M. Doenças Causadas por Fungos. In: LOPES, C.A.; SANTOS, J.R.M. Doenças do tomateiro. Brasília: EMBRAPA - SPI, 1994. p.18.
MARTINEZ, S.S. O Nim: Azadirachta indica natureza, usos múltiplos, produção. Londrina: IAPAR, 2002. 142p.
MOLINE, H.E.; LOCKE, J.C. Comparing neem seed oil with calcium chloride and fungicides for controlling postharvest apple decay. HortScience, v.28, n.7, p.719-20, 1993.
PASINI, C. et al. Effectiveness of antifungal compounds against rose powdery mildew (Sphaerotheca pannosa var. rosae) in glasshouses. Crop Protection, v. 16, n.3, p.251-6, 1997.
PRITHVIRAJ, B. et al. Field evaluation of ajoene, a constituent of garlic (Allium sativum) and neemazal, a product of neem (Azadirachta indica) for the control of powdery mildew (Erysiphe pisi) of pea (Pisum sativum). Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz, v. 105, n.3, p.274-8, 1998.
ROVESTI, L.; DI MARCO, S.; PANCALDI, D. Effect of neem kernel extract on some phytopathogenic fungi under greenhouse conditions. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz, v.99, n.3, p.293-6, 1992.
SHIVPURI, A.; SHARMA, O.P.; JHAMARIA, S.L. Fungitoxic properties of plant extracts against pathogenic fungi. Journal of Mycology and Plant Pathology, v.27, n. 1, p.29-37, 1997.
SINDHAN, G.S.; HOODA, I.; PARASHAR, R.D. Evaluation of plant extracts for the control of powdery mildew of pea. Journal of Mycology and Plant Pathology, v.29, n.2, p.257-8, 1999.
SINGH, U.P.; PRITHIVIRAJ, B. Neemazal, a product of neem (Azadirachta indica), induces resistance in pea (Pisum sativum) against Erysiphe pisi. Physiological and Molecular Plant Pathology, n.51, p.181-194, 1997.
SINGH, U.P., SINGH, H.B.; SINGH, R.B. The fungicidal effect of neem (Azadirachta indica) extracts on some soil-borne pathogens of gram (Cicer arietinum). Mycologia, v.72, n.6, p.1077-93, 1980.
STEINHAUER, B. Possible ways of using the neem tree to control phytopathogenic fungi. Plant Research and Development, n.50, p.83-92, 1999.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
