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Contrasted responses of Botrytis cinerea isolates developing on tomato plants grown under different nitrogen nutrition regimes
In tests on plants grown with contrasted regimes of nitrate fertilization, overall disease severity was lower for all isolates on plants with higher nitrogen inputs, regardless of inoculum concentration, however, differences among isolates were observed in the effect of plant nitrogen nutrition on infection and on lesion expansion.
EFFICACY OF SELECTED FUNGICIDES ON THE LINEAR COLONY GROWTH OF THE HELMINTHOSPORIUM ORYZAE CAUSED BY BROWN SPOT DISEASE OF RICE
Brown spot of rice caused by Helminthosporium oryzae, attacks the plant at any growth stage and it appears on the foliage as scattered brown spot that coalesces and result in withering and yellowing…
Sand flies of the Republic of Djibouti : ecological distribution, seasonal population trends, and identification of species
The ecology, distribution, and public health importance of human-biting sand fly species found in Djibouti discussed, seasonal densities calculated, and taxonomic key for the identification of sand flies of Djiboutsi has been constructed.
POTENTIAL OF PLANT EXTRACTS AND FUNGICIDES FOR MANAGING FUSARIUM OXYSPORUM F. SPLYCOPERSICI
- Gul. Bahar. Poussio, M. Abro, Jamal-u-ddin Hajano, M. I. Khaskheli, K. I. Rajput, Shafique-ur-Rehman Memon
- BiologyPakistan Journal of Phytopathology
- 30 June 2018
The results showed that the disease was occurring in all locations with the range of 8-47 % incidence and pathogenic nature of the fungus was tested on the tomato Golo variety through soil drenching method.
EVALUATION OF DIFFERENT ESSENTIAL OILS AND BIO CONTROL AGENTS AGAINST ALTERNARIA ALTERNATA THE CAUSAL AGENT OF FRUIT ROT OF JUJUBE
This study was carried out on the evaluation of different essential oils and biocontrol agents against Alternaria alternata the causal agent of fruit rot to find out the effective and suitable oil for the growth inhibition of A. alternata.
Reduced susceptibility of tomato stem to the necrotrophic fungus Botrytis cinerea is associated with a specific adjustment of fructose content in the host sugar pool
The results highlight distinct use of host glucose and fructose after infection by B. cinerea and suggest strongly that adjustment of the relative fructose content is required for enhanced plant defence.
Can plant sugars mediate the effect of nitrogen fertilization on lettuce susceptibility to two necrotrophic pathogens: Botrytis cinerea and Sclerotinia sclerotiorum?
Plant metabolic modifications induced by variations of N availability conferred the plant variable defence ability, which seemed, at least for S. sclerotiorum, mainly mediated by variations in host SUC and FRU levels.
Nitrogen fertilization impacts biocontrol of tomato gray mold
To the authors' knowledge, this is the first report of an effect of N fertilization on the efficacy of biocontrol against an airborne disease, and adapting N fertilizations is a promising technique to protect greenhouse tomato.
PATHOGENICITY AND CHEMICAL CONTROL OF BASAL ROT OF ONION CAUSED BY FUSARIUM OXYSPORUM F. SP. CEPAE
Application of fungicides brought a remarkable increase in seedling emergence of treated plants inoculated with F. oxysporum as compared to the untreated plants, and a positive correlation was observed between concentrations of fungicide used and resulting inhibition of fungal growth.
Nitrogen fertilization of the host plant influences production and pathogenicity of Botrytis cinerea secondary inoculum.
It is suggested that it may be possible to find an optimum level of N fertilization to reduce the production of secondary inoculum and its pathogenicity to tomato.