Results 41 to 50 of about 5,366 (185)

FUNGICIDAL SEED TREATMENT AND FOLIAR SPRAY IN RELATION TO Rhizoctonia solani INFECTION IN COFFEE

open access: yesAnnals of Tropical Research, 1982
In vitro seed treatment with carboxin, carbendazim, benomyl, quintozene, triadimefon and thiophanate-methyl enhanced the percent germina-tion of Coffea arabica and C. canephora.
P Venkatasubbaiah   +2 more
doaj  

Downy mildews of India [PDF]

open access: yesCrop Protection, 2002
Abstract The downy mildew diseases are caused by different fungus species in several genera in the class Oomycetes. They comprise a major group of diseases affecting a large number of crops. In India, downy mildews have been reported on several economically important crops, including maize, sorghum, pearl millet, onion, soybean, cucurbits, and grapes,
Thakur, R P, Mathur, K
openaire   +2 more sources

Sensitivity of Irish Pyrenopeziza brassicae populations to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides

open access: yesPest Management Science, EarlyView.
For three collections of Irish Pyrenopeziza brassicae populations fungicide sensitivity status to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides was determined using sensitivity screening in vitro. Molecular mechanisms of insensitivity have been identified for MBC and QoI in
Diana E Bucur   +3 more
wiley   +1 more source

EFFECT OF CULTURAL PRACTICES IN THE CONTROL OF COLLAR ROT INFECTION IN COFFEE SEEDLINGS

open access: yesAnnals of Tropical Research, 1982
Incorporation of sand in the soil influenced the disease severity of collar rot in coffee while lime significantly reduced the occurrence of the disease. Rice-straw mulching was found to increase the growth and degree of infection of R.
P Venkatasubbaiah, KM Safeeulla
doaj  

Alcoholic extracts of Russian sage (Salvia yangii) contain bioactive terpenoids with inhibitory activity against grapevine downy mildew (Plasmopara viticola)

open access: yesPest Management Science, EarlyView.
Alcoholic extracts from flowers, leaves, and shoots of Russian sage decreased downy mildew severity on grapevine leaf disks. Fractionation followed by metabolomic analysis revealed putative terpenoids as the main components of the active fractions. Specifically, 7‐methylrosmanol, 12‐O‐methylcarnosic acid, carnosic acid, and carnosol were identified as ...
Anna Smaldone   +5 more
wiley   +1 more source

RHIZOSPHERE AND RHIZOPLANE MICROFLORA OF COFFEE SEEDLINGS AS INFLUENCED BY COLLAR ROT AND BY SEED PRE-TREATMENT

open access: yesAnnals of Tropical Research, 1986
Rhizophere and rhizoplane microflora of coffee seedlings were studied by the dilution plate technique. The number of fungi, yeast and bacteria was higher in the rhizosphere than in the non-rhizosphere and rhizoplane.
P Venkatasubbaiah, KM Safeeulla
doaj  

Disease control in oilseed rape: Current insights and perspectives for next‐generation integrated pest management

open access: yesPest Management Science, EarlyView.
Winter oilseed rape in Europe suffers frequent pathogen losses. This review outlines key integrated pest management (IPM) strategies, rotation, residue and tillage management, optimized sowing, resistance, and targeted fungicides supported by forecasting.
Jon S West   +2 more
wiley   +1 more source

Forecasting and Management of Hop Downy Mildew [PDF]

open access: yesPlant Disease, 2010
Downy mildew of hop (Humulus lupulus), caused by Pseudoperonospora humuli, is managed in the Pacific Northwestern United States by regular application of fungicides. A degree-day model that forecasts the first emergence of shoots systemically infected with P.
David H, Gent   +2 more
openaire   +2 more sources

Cannibalism in Buchananiella whitei (Hemiptera: Anthocoridae) and its intraguild interactions with seven predatory mites (Acari: Phytoseiidae & Laelapidae)

open access: yesPest Management Science, EarlyView.
Extraguild prey reduces cannibalism and intraguild predation in Buchananiella whitei, while first‐instar nymphs dominate most predatory mites, with outcomes affected by body size and behavioral traits. Abstract BACKGROUND Cannibalism and intraguild predation (IGP) are common interactions among predators that can influence the effectiveness of ...
Yuzhi Gong   +3 more
wiley   +1 more source

Analysis of microsatellites from the transcriptome of downy mildew pathogens and their application for characterization of Pseudoperonospora populations [PDF]

open access: yesPeerJ, 2017
Downy mildew pathogens affect several economically important crops worldwide but, due to their obligate nature, few genetic resources are available for genomic and population analyses.
Emma C. Wallace, Lina M. Quesada-Ocampo
doaj   +2 more sources

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