Journal ArticleDOI
In vitro trapping capability of Arthrobotrys spp. on infective larvae of Haemonchus contortus and Nacobbus aberrans
TLDR
The trapping capability of Arthrobotrys oligospora and A. conoides against third stage larvae (L3) of Haemonchus contortus (Trichostrongylidae) was evaluated in an in vitro trial and the trapping capability shown was higher than 90% for both kinds of nematode.Abstract:
The trapping capability of Arthrobotrys oligospora and A. conoides (Hyphomycetales) against third stage larvae (L3) of Haemonchus contortus (Trichostrongylidae) was evaluated in an in vitro trial. Arthrobotrys oligospora showed a 35.87% and 25.71% trapping effectiveness against H. contortus infective larvae at 18 and 25°C, respectively; whereas the trapping capability of A. conoides was 92.17% and 90.40% at the same temperatures, respectively. Microscopic examination demonstrated that A. conoides spontaneously developed a large quantity of three-dimensional loops before the nematodes were added. Neither of the two species studied developed three-dimensional adhesive loops at 30°C, consequently no trapped nematode was observed. In a second trial, the trapping capability of A. conoides against H. contortus (L3) and second stage larvae (J2) of Nacobbus aberrans (Pratylenchidae), was evaluated at 25°C. The trapping capability shown by A. conoides was higher than 90% for both kinds of nematode. The possible use of A. conoides to control ovine haemonchosis is discussed.read more
Citations
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Biological control of helminths.
TL;DR: As a potential component in future integrated parasite-control strategies, biological control by means of predacious fungi seems to be moving from a promising possibility toward becoming a reality, and the netforming nematode-destroying fungus Duddingtonia flagrans appears to be the candidate of choice.
Journal ArticleDOI
Prospects for controlling animal parasitic nematodes by predacious micro fungi.
TL;DR: Under Danish climatic conditions it has been shown that the number of parasite larvae on pasture and the worm burden of the grazing animals is significantly reduced when animals are fed spores during the initial 2–3 months of the pasture season.
Journal ArticleDOI
Controle biológico de helmintos parasitos de animais: estágio atual e perspectivas futuras
TL;DR: The administration of nematophagous fungi to animals has been considered an alternative in gastrointestinal helminthiasis prophylaxis and several fungi formulations have been evaluated, but there is so far no commercial product available.
Journal ArticleDOI
The preventive effect of the fungus Duddingtonia flagrans on trichostrongyle infections of lambs on pasture
TL;DR: It is concluded that dosing sheep with D. flagrans while grazing may limit the build up of pasture contamination in the late grazing season and subsequently limit the intake of larvae in sheep.
Journal Article
The genus nacobbus thorne & allen, 1944 (nematoda: pratylenchidae): systematics, distribution, biology and management
Rosa H. Manzanilla-López,M. A. Costilla,Marcelo E. Doucet,Javier Franco,Renato N. Inserra,P. S. Lehman,I. Cid del Prado-Vera,R. M. Souza,KA Evans +8 more
TL;DR: The results of host and field studies conducted in North and South America indicate that N. aberrans populations can be separated into bean, potato and sugarbeet groups, which have distinct host preferences and do not reproduce on graminaceous species or on leguminous species of the genera Medicago and Lupinus.
References
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Journal ArticleDOI
Some Hyphomycetes that Prey on Free-Living Terricolous Nematodes
TL;DR: In several preliminary summaries, the morphological features of 16 fungi observed to subsist by the capture of free-living nematodes infesting old agar plate cultures started from various decaying plant materials were set forth.
Journal Article
A method for obtaining quantities of clean meloidogyne eggs.
TL;DR: The authors have obtained gram quantities of clean, viable eggs of Meloidogyne incognita by a method which combined treatment with hypochlorite and differential centrifugation and some second-stage larvae were released from the eggs.