Monitoring of leaf rust in conilon coffee clones to improve fungicide use

Belan, Leônidas Leoni; Jesús, Waldir Cintra de; Souza, Antônio Fernando de; Zambolim, Laércio; Tomaz, Marcelo Antônio; Alves, Fábio Ramos; Ferrão, Maria Amélia Gava; Amaral, José Francisco Teixeira do

doi:10.1007/s13313-014-0310-y

Cited by 19 publications

(8 citation statements)

References 9 publications

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“…One of the decisive factors was chemical control and particularly the time when the fungicides were applied. Fungicide needs to be sprayed preventatively to be efficient, as soon as disease incidence reaches 5% with curative fungicides, and even lower incidences with protective ones (Belan et al, 2015a;Zambolim, 2016). Coffee rust monitoring helps to identify the right timing for fungicide sprays.…”

Section: Discussionmentioning

confidence: 99%

“…That is why low coffee rust impacts and intensities were found in most of the plots where disease monitoring was implemented. Disease monitoring is particularly useful for addressing unexpected disease developments (Belan et al, 2015a), as probably occurred in 2012 with coffee rust (Avelino et al, 2015). It has been proposed that the wetter conditions of the first half of 2012 were propitious to the sooner than usual development of the epidemic (Avelino et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

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Economic constraints as drivers of coffee rust epidemics in Nicaragua

Villarreyna

Barrios²,

Vílchez

et al. 2020

Crop Protection

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Economic constraints as drivers of coffee rust epidemics in Nicaragua

Villarreyna

Barrios²,

Vílchez

et al. 2020

Crop Protection

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“…Triazol fungicides applied alone or in combination with insecticide to the soil are efficient to control the disease in conilon coffee (Capucho et al 2013b;Zambolim et al 2015). The option to spray a triazol + strobilurin fungicide alone instead of applying triazol to the soil with insecticides (usually after the first rains in the beginning of the season) should be based on the disease incidence (5 % threshold) (Belan et al 2014).…”

Section: Chemical-based Control Strategiesmentioning

confidence: 99%

Current status and management of coffee leaf rust in Brazil

Zambolim

2016

Trop. plant pathol.

Self Cite

170

179

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In Brazil, coffee leaf rust, a fungal disease caused by Hemileia vastatrix Berk. et Br., was first detected in Coffea arabica in January 1970, in the southern region of Bahia state. Today, the disease is present in virtually all arabica and conilon (Coffea canephora) coffee-growing areas of Brazil, and continues to threaten coffee production with losses that range from 30 to 50 %. The disease is usually less severe at elevations above 1,200 m, where the environment is less conducive for the rust. Disease risk is increased in arabica coffee compared to conilon, and lower production is expected in the year following an epidemic due to early defoliation and drying of branches. Several varieties were developed in the country using sources of resistance from germplasm collections in Portugal. However, very few are completely resistant, instead exhibiting various levels of partial resistance. The disease is currently managed through the use of protectant and systemic fungicides including copper, triazoles and strobilurins that should be applied following rules of decision that vary according to the risk scenario. A review of the biology and epidemiology of coffee rust in Brazil is presented and the best management practices for controlling the disease based on advances in breeding for resistance and crop protection are discussed.

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“…Record production levels anticipated for Honduras in 2015 reflect more recent plantings with rust-resistant varieties (USDA FAS 2015a). There are multiple adaptation possibilities for managing H. vastatrix, including agronomic practices (Avelino et al 2011, Lasco et al 2014, biological controls (Haddad et al 2009), chemical applications (Belan et al 2015), and genetic breeding (Rozo et al 2012, Silva et al 2006, as well as monitoring and alert systems to acquire and disseminate actionable information (e.g., FEWS NET et al 2014, SATCAFE 2015. Some adaptations may be quickly implemented; others may take decades to develop.…”

Section: Countrymentioning

confidence: 99%