Plant Pathology, Disease Control of Fruit and Vegetables

Performance of ‘Valencia’ Orange (Citrus sinensis [L.] Osbeck) on 17 Rootstocks in a Trial Severely Affected by Huanglongbing

‘Valencia’ orange (Citrus sinensis [L.] Osbeck) was grown on 17 rootstocks through seven years of age and the first four harvest seasons in a central Florida field trial severely affected by huanglongbing (HLB) disease. All trees in the trial had HLB symptoms and were shown by PCR...
Kim D. Bowman
Greg McCollum
Ute Albrecht
Scientia Horticulturae

Controlling Black Knot in Michigan

Black knot (Apiosporina morbosa), is a striking disease and a major disease of plum trees in Michigan. Black knot appears on the woody parts of the tree including twigs, limbs and sometimes the trunks. Black knot attacks plums, wild cherries and some ornamental cherries. Cultivated sweet and...
Mark Longstroth
Michigan State University Extension

Bacterial Leaf Scorch of Blueberry

Relative to total sales, blueberries are the number one fruit commodity in the state of Georgia, surpassing even peaches. Recently, a new disease has been identified in the Georgia blueberry production region. This disease has been named “bacterial leaf scorch,” and it is caused by the...
Phillip M. Brannen
Gerard Krewer
Bob Boland
Dan Horton
CJ Chang
University of Georgia Extension

Estado fitosanitario del azafrán en Aragón (España): insectos, ácaros, nematodos, virus, bacterias y malas hierbas

  El azafrán cultivado en España está adquiriendo relevancia en las últimas décadas como producto de gran calidad, lo que requiere la selección de cormos (sus órganos reproductivos) sanos para la plantación con el objetivo de mantener un...
A. Cirujeda
Mª M. Coca-Abia
F. Escriu
A. Palacio-Bielsa
A.I. Marí
P. Zuriaga
J. Aibar
M. Luis-Arteaga
C. Zaragoza

Actividad antifúngica e identificación molecular de cepas nativas de Bacillus subtilis

  La bioprospección de bacteria antagónicas, como agentes de control biológico para el manejo de hongos fitopatógenos, es una actividad preponderante para reducir el uso de fungicidas químicos. La bacteria Bacillus subtilis ha mostrado una excelente capacidad...
Esaú Ruiz-Sánchez
Miguel Ángel. Mejía-Bautista
Alejandra Serrato-Díaz
Arturo Reyes-Ramírez
Yokiushirdhilgilmara Estrada-Girón
Alberto J. Valencia-Botín

Grafting as a Tool to Improve Tomato yellow leaf curl disease (TYLCV)-Tolerance in Tomato

  The purpose of this study was to investigate possible positive effects of grafting and use of different TYLCV-resistant rootstocks on the tolerance/resistance level and tomato fruit yield and quality. Tomato cvs used as scions were TYLCV-susceptible cv. Castlerock and TYLCV-tolerant hybrid...
Ahmed M.A. Mahmoud
Journal of Horticultural Science & Ornamental Plants

Disease Management Considerations for Producing Strawberry Plug Plants

  Strawberry plug plants are commonly used in the strawberry industry with multiple benefits. Plug plants establish with less overhead watering and management after field setting. Plant size and quality is generally higher and some growers prefer to plant plug plants as compared to bare root...
Frank Louws
NC State University

Black Root Rot of Strawberry

  Black Root Rot (BRR) is a disease complex on strawberry, meaning that one or more organisms can be involved in the infection, including the fungi Pythium spp., Fusarium, spp., Rhizoctonia spp., and several species of nematodes. It is a common disease in N.C. and the main reason growers...
Frank Louws
NC State University

Basil Downy Mildew

  Symptoms of the disease can be mistaken by nutritional problems since they manifest as a yellowing or browning of leaves. However, if the abaxial side of the leaf is inspected, profuse, dark sporulation will be covering the surface of infected leaves. Usually, the sporulation is obvious...
Lina Quesada-Ocampo
North Carolina State University

Effect of mulch and different fungicide spray regimes on yield of tomato (Solanum lycopersicum L.) in Tanzania

  In many areas in Tanzania, pests management for tomato involves weekly pesticide sprays. The practice poses a threat to the environment and health of consumers. In this study the effect of pesticide spray regimes and use of mulch were evaluated on ‘Tanya VF’ and ‘Tengeru 97...
H. D. Mtui
A. P. Maerere
M. A. Bennett
K. P. Sibuga
African Journal of Food, Agriculture, Nutrition and Development