Results 131 to 140 of about 1,580 (169)

Fungal ovicidal activity on Toxocara canis eggs

Revista Iberoamericana de Micología, 2013
Visceral toxocariasis is a parasitic zoonosis caused by Toxocara canis. The prevalence of this parasite in dogs, soil contamination and the resistance of eggs increase human exposure to the disease. Moreover, the difficulties of the control measures justify the need for alternative ones.The objective of this study was to evaluate the in vitro ovicidal ...
Fernando, De Souza Maia Filho, Juliana, Nunes Vieira, Maria Elisabeth, Aires Berne, Franciele Elisa, Stoll, Patricia, Da Silva Nascente, Luciana, Pötter, Daniela Isabel, Brayer Pereira   +6 more
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Echinococcus granulosus: Ovicidal activity of praziquantel and bunamidine hydrochloride

Experimental Parasitology, 1979
Abstract Eggs of Echinococcus granulosus either released from or contained within the proglottids were treated with praziquantel and bunamidine hydrochloride at 37 C for 1 hr and then administered orally to mice and gerbils to test their infectivity. Praziquantel did not possess absolute ovicidal activity against E.
A S, Thakur, U, Prezioso, N, Marchevsky
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Ovicidal, larvicidal and juvenilizing activity of a picolinephenoxyanilide againstCydia pomonella

Pest Management Science, 2000
N-(4-phenoxyphenyl)-2-pyridinecarboxamide (1) was synthesized from commercially available materials and its ovicidal and larvicidal activity against Cydia pomonella (L) was tested. The compound showed a LC 50 of 0.98 mg ml -1 when eggs less than 24h were sprayed using a Potter Tower, but it had no effect when eggs older than this were sprayed.
Ramon Canela, Mercè Balcells, Laura Dalmau, Jesús Avilla   +3 more
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Ovicidal and larvicidal activity of Melia azedarach extracts on Haemonchus contortus

Veterinary Parasitology, 2006
Haemonchus contortus is responsible for severe economic losses in sheep and goat breeding in the Northeast of Brazil. However, the effectiveness of control is compromised due to anthelmintic resistance and misuse. In the search for natural anthelmintics, Melia azedarach L., a plant indigenous to India but now distributed throughout Brazil, was selected
M V, Maciel, S M, Morais, C M L, Bevilaqua, A L F, Camurça-Vasconcelos, C T C, Costa, C M S, Castro   +5 more
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In vitro and in vivo studies on the ovicidal activity of fenbendazole

Research in Veterinary Science, 1978
The in vitro ovicidal activity of fenbendazole against eggs of Ostertagia ostertagi, Haemonchus contortus and Trichostrongylus colubriformis was observed using different concentrations of active principle. The optimum concentration for ovicidal activity is evidently 0.5 ppm fenbendazole.
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OVICIDAL ACTIVITY OF INSECTICIDES ON EGGS OF Brevennia rehi LINDINGER

Madras Agricultural Journal, 1987
Biphenyl Methyl Carbamate 50 EC (BPMC) 0.25 kg a-i./ha was found to be ovicidally active followed by carbary: 50 WP @ 0.5 kg and dimethoate @ 0.15 kg a. i/ha. BPMC delayed hatching of eggs and it caused death of the crawlers at the time of hatching.
GOPALAN M, COUMARA RAJA N, BALASUBRAMANIAN G   +2 more
openaire   +1 more source

In vitro ovicidal activity of Baccharis conferta Kunth against Haemonchus contortus

Experimental Parasitology, 2019
The indiscriminate use of chemical drugs to deworm livestock tends to trigger an anthelmintic resistance problem. In this context, the use of plant extracts rich in secondary metabolites could be an alternative method for the control of gastrointestinal nematodes.
J.A. Cortes-Morales, A. Olmedo-Juárez, G. Trejo-Tapia, M. González-Cortazar, B.E. Domínguez-Mendoza, P. Mendoza-de Gives, A. Zamilpa   +6 more
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Relationship Between Formamidine Structure and Insecticidal, Miticidal, and Ovicidal Activity

Journal of Economic Entomology, 1976
The insecticidal, miticidal, and ovicidal activities of 5 formamidines, including chlordimeform, were examined in laboratory studies against eggs and adults of the twospotted spider mite, Tetranychus urticae Koch, carmine spider mite, T. cinnabarinus (Boisduval), and citrus red mite, Panonychus citri (McGregor), mobile forms of the green peach aphid ...
Edwin G. Gemrich, B. Lamar Lee, Matthew L. Tripp, Edward VandeStreek   +3 more
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Ovicidal Activity of Insecticides on the Spotted Tentiform Leafminer (Lepidoptera: Gracillariidae)

Journal of Economic Entomology, 1986
Several insecticides were tested for ovicidal activity on spotted tentiform leafminer (STLM), Phyllonorycter blancardella (F.). In one laboratory experiment, fenvalerate and methomyl caused 88 and 72% egg mortality, respectively, whereas endosulfan was less effective (29.6% egg mortality). The control (water) had the lowest egg mortality (8%).
John P. Hayden, Angus J. Howitt
openaire   +1 more source

Genetic component of growth rate and ovicidal activity in Penicillium lanosum.

Acta Universitatis Palackianae Olomucensis Facultatis Medicae, 1992
The growth rate and ovicidal activity of 10 complementary biauxotrophic mutants (haploid constitution) obtained from strain No 45 of the ovicidal fungus Penicillium lanosum was studied. The quantitative characters were further evaluated in 17 diploid strains prepared from pairs of mutants.
K, Lenhart, V, Chalupová, I, Loucková
openaire   +1 more source