Dead Spot Severity, Pseudothecia Development, and Overwintering of Ophiosphaerella agrostis in Creeping Bentgrass

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dead Spot Severity, Pseudothecia Development, and Overwintering of Ophiosphaerella agrostis in Creeping Bentgrass.

ABSTRACT Dead spot (Ophiosphaerella agrostis) is a damaging disease of young </=6 years old) creeping bentgrass (Agrostis stolonifera) golf greens. The objectives of this 3-year field study were to determine the peak periods of dead spot activity based on increasing patch diameter and pseudothecia development, and to determine where O. agrostis overwinters. Patch diameter generally increased at...

متن کامل

Nitrogen Source Impact on Dead Spot (ophiosphaerella Agrostis) Recovery in Creeping Bentgrass

Dead spot is a relatively new disease of creeping bentgrass (Agrostis stolonifera L.) incited by Ophiosphaerella agrostis Dernoeden, M.P.S. Câmara N.R. O’Neill van Berkum et M.E. Palm. Limited information is available with regards to chemical and cultural management strategies for dead spot. Two field studies were designed to evaluate the influence of various fertilizers and iprodione on the re...

متن کامل

Genetic Diversity Among Ophiosphaerella agrostis Strains Causing Dead Spot in Creeping Bentgrass

Dead spot is a new disease of young creeping bentgrass (Agrostis stolonifera L.) putting greens in the United States. The disease is incited by Ophiosphaerella agrostis Dernoeden, M.P.S. Câmara, N.R. O’Neill, van Berkum, et M.E. Palm, a previously undescribed pathogen that first was isolated in 1998 from a golf course in Maryland (1,3). In the same year, the disease was confirmed on creeping be...

متن کامل

Effect of Azoxystrobin on Dollar Spot Disease Development in Creeping Bentgrass (agrostis Stolonifera) and Kentucky Bluegrass (poa Pratensis)

Dollar spot disease, caused by the fungus Sclerotinia homoeocarpa F.T. Bennett is common on intensively managed creeping bentgrass (Agrostis stolonifera L.) and annual bluegrass (Poa annua L.), and other turfgrasses. Frequent chemical applications during the growing season are made to control this disease. Previous observations state that application of fungicides such as azoxystrobin can incre...

متن کامل

Defines Dead Spot More Clearly

In 1998, researchers at the University of Maryland discovered a new disease of creeping bentgrass caused by an unidentified species of Ophiosphaerella. Through morphological and molecular study, it was shown that the pathogen constituted a new species, Ophiosphaerella agrostis, and the disease was named bentgrass dead spot. Subsequently, O. agrostis was found in Texas and Florida causing dead s...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Phytopathology®

سال: 2006

ISSN: 0031-949X,1943-7684

DOI: 10.1094/phyto-96-0248