clubroot การใช้

• Historical reports of clubroot date back to the 13th century in Europe.
• The only fungicide shown to be effective in treating clubroot is PCNB.
• Liming has been an effective control measure to curb clubroot since the 19th century.
• Crop rotation with non-host crops is another method to help prevent clubroot.
• Clubroot gets its name from its primary symptom : enlargement of the plant roots.
• If left uncontrolled yield losses due to clubroot can be as high as 50 %.
• Clubroot is a soilborne disease caused by the biotrophic protist " Plasmodiophora brassica ".
• This method does not eradicate clubroot but it will slow its development by creating unfavorable conditions.
• It includes the species " Plasmodiophora brassicae ", which causes the disease cabbage clubroot.
• In addition, calcium and magnesium can be added to the nutrition profile of the soil to help control clubroot.
• This takes massive applications to field soil in order to treat all of the soil where spores of clubroot are found.
• In the late 19th century, a severe epidemic of clubroot destroyed large proportions of the cabbage crop in St . Petersburg.
• Some fungicide has been found to help with clubroot but it is very pricey and would take huge amounts to saturate the soil.
• Clubroot, caused by the soilborne slime mold-like organism " Plasmodiophora brassicae ", results in swollen, club-like roots.
• There have been attempts to breed varieties with clubroot resistance or powdery mildew resistance but the varieties failed due to bad leaf texture traits or broken resistances.
• Several strains of canola have been tried, including European winter canola cv . Mendel ( Brassica napus L . ), as a clubroot-resistant crop.
• In 2003 clubroot was identified in Alberta, Canada, as an outbreak in canola crops in the central area of the province mainly isolated to the Edmonton area.
• As a plant pathologist he worked on the biology and control of a species of Phytomyxea, " Plasmodiophora brassicae ", the cause of clubroot disease.
• If your brassicas have been troubled by clubroot, Smith recommends adding lime to raise the pH . Clematis, delphiniums, and lilacs also like a sprinkling of lime now.
• The Russian scientist Mikhail Woronin eventually identified the cause of clubroot as a " plasmodiophorous organism " in 1875, and gave it the name " Plasmodiophora brassicae ".