תפריט נגישות
ניגודיות עדינהניגודיות גבוהה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם תפריט נגישותניגודיות עדינהניגודיות גבוההמונוכרוםהדגשת קישוריםחסימת אנימציהפונט קריאסגוראיפוס הגדרות נגישותלהורדת מודול נגישות חינםMichael Samish
There are about 850 tick species which ingest only blood and stay roughly 20% of their life cycle on the ground. Ticks inhibit a very large variety of ecological niches. Fungi were reported to be the major pathogen of ticks in nature. All tick stages, including their eggs, were generally found to be susceptible to fungi mainly from the genera Beauveria and Metarhizium. The fully engorged female ticks were often found to be more susceptible in comparison to the other engorged or unfed stages. In most cases, the smaller the tick stage the shorter it’s lethal time. Even though all tick species tested were found to be susceptible to entomopathogenic fungi, the differences in degree of susceptibility is very large. Similarly the virulence of different fungi species and strains to ticks also differ markedly. The very few experiments published on spraying conidia on either tick-infested field areas or on tick-infested vertebrate hosts demonstrated, in most cases a significant reduction in the tick population. However, the reduction and/or the time span of conidia activity was not sufficient. Finding an optimal fungus strain and developing a satisfactory formulation seems to be the main key for obtaining a successful commercial compound.
Michael Samish
There are about 850 tick species which ingest only blood and stay roughly 20% of their life cycle on the ground. Ticks inhibit a very large variety of ecological niches. Fungi were reported to be the major pathogen of ticks in nature. All tick stages, including their eggs, were generally found to be susceptible to fungi mainly from the genera Beauveria and Metarhizium. The fully engorged female ticks were often found to be more susceptible in comparison to the other engorged or unfed stages. In most cases, the smaller the tick stage the shorter it’s lethal time. Even though all tick species tested were found to be susceptible to entomopathogenic fungi, the differences in degree of susceptibility is very large. Similarly the virulence of different fungi species and strains to ticks also differ markedly. The very few experiments published on spraying conidia on either tick-infested field areas or on tick-infested vertebrate hosts demonstrated, in most cases a significant reduction in the tick population. However, the reduction and/or the time span of conidia activity was not sufficient. Finding an optimal fungus strain and developing a satisfactory formulation seems to be the main key for obtaining a successful commercial compound.
