Chemical control is the most widely used method for disease management in significant crops such as soybeans and wheat. However, a few years biological has gained prominence. Thus, we evaluated antagonism of bacteria Pseudomonas fluorencens, Pantoea aglomerans, Bacillus sp. on phytopathogens Corynespora cassiicola Drechslera tritici-repentis, previously isolated from soybean wheat leaves, respe...

background: the tan spot disease of wheat caused by pyrenophera tritici-repentis has become a major disease in most wheat growing areas worldwide. objectives: here we used issr and rapd markers to study the genetic diversity of 34 p. tritici-repentis isolates collected from north of iran.materials and methods: the leaves having the typical symptoms of tan spot disease were collected and after f...

Pyrenophora semeniperda (anamorph Drechslera campulata) is a necrotrophic fungal seed pathogen that has a wide host range within the Poaceae. One of its hosts is cheatgrass (Bromus tectorum), a species exotic to the United States that has invaded natural ecosystems of the Intermountain West. As a natural pathogen of cheatgrass, P. semeniperda has potential as a biocontrol agent due to its effec...

Pyrenophora tritici-repentis, (eşeysiz dönemi: Drechslera tritici-repentis) tüm dünyada buğdayda sarı yaprak lekesi hastalığına neden olan önemli bir fungal patojendir. tritici-repentis Ascomycota funguslarının en büyük ve çeşitli sınıfı Dothideomycetes sınıfında yer alır. Fungus, konidiler ile eşeysiz, askosporlar eşeyli çoğalabilir. karmaşık ırk yapısına sahiptir. Irk ayrımı etmen tarafından ...

There are various types of discolouration that can affect common (Triticum aestivum L.) and durum [T. turgidum L. ssp. durum (Desf.) Husn.] wheat kernels grown on the Canadian Prairies. Black point and dark smudge, mostly associated with Alternaria alternata (Fr.) Keissl., and Cochliobolus sativus (Ito & Kurib.) Drechs. ex Dast. [anamorph Bipolaris sorokiniana (Sacc.) Shoemaker] are common disc...

PCR primers for diagnosis of Rhynchosporium secalis in seed samples of barley were developed. For the quantification of the pathogen in seed samples a real-time PCR with SYBR Green approach was used. Amounts from 1.8 to 419.1 pg of R. secalis DNA per 100 ng of total DNA were detected in 18 samples of barley seeds contaminated by R. secalis in field conditions. The correctness of this quantitati...