Aim Euseius utilis is a generalist and widely distributed in northern areas of China, while Neoseiulus barkeri is widely used in biocontrol of agricultural pests. The study aims to assess the risk of ...N. barkeri to local species and establish a reasonable combination of different natural enemies in biological control. Methods In a series of experiments under laboratory conditions, the rates of intra- and interspecific predation on immature mites, survival time, and oviposition for the adult females of N. barkeri bred in the laboratory andE. utilis collected from the campus of Inner Mongolia Agricultural University were compared in order to study the aggressiveness and con- and heterospecific interactions between the two species of phytoseiid mites. Results The females of the two species had difficulties in piercing phytoseiid eggs, and both phytoseiid mites consumed more con- and heterospecific larvae than protonymphs. E. ulitis was more aggressive than N. barkeri in intraguild predation in absence of sh
Ácaros asociados a frambuesa en Zamora y Los Reyes, Michoacán Villalvazo-Valdovinos, Ricardo; Pamatz-Ángel, María Mayra; Lara-Chávez, Ma Blanca Nieves ...
Revista mexicana de ciencias agrícolas (México),
04/2024, Letnik:
15, Številka:
3
Journal Article
Odprti dostop
México ocupa el segundo lugar como productor de frambuesa y es muy poco el conocimiento generado de los ácaros asociados a este cultivo. En el presente trabajo se identificaron los ácaros ...recolectados en la parte aérea de frambuesa, producidas en los municipios de Zamora y Los Reyes de Salgado, Michoacán, México de febrero de 2018 a marzo de 2019. En los Reyes se registraron 8 748 ácaros pertenecientes a cuatro familias y nueve especies. Las especies encontradas fueron Amblydromalus ca. congeae, Neoseiulus californicus, Phytoseiulus persimilis, Typhlodromips sp., Euseius mesembrinus, Euseius sp. (Phytoseiidae), Tetranychus ludeni (Tetranychidae), Tarsonemus sp., (Tarsonemidae) y Tyrophagus putrescentiae (Acaridae). En Zamora se recolectaron en total 4 253 individuos adultos de dos especies, Neoseiulus fallacis con 235 (Phytoseiidae) y Tetranycus ludeni 4 018 (Tetranychidae).
Abstract
Date-locality-host records for 37 mite species of 15 families are presented for Hungary and Austria. These results include the first record of eight species for Hungary, viz.
Charletonia ...krendowskyi
(Feider, 1954),
Marantelophus rudaensis
(Haitlinger, 1986),
Cunaxa gazella
(Berlese, 1916),
Eupalopsellus oelandicus
Sellnick, 1949,
Tydeus lindquisti
(Marshall, 1970),
Neoseiulus dungeri
(Karg, 1977),
Neoseiulus tauricus
(Livshitz et Kuznetzov, 1972) and
Proctolaelaps drosophilae
Karg, Baker et Jenkinson, 1995. Observations on habitat preferences, plant associations, co-occurrences and feeding behaviour are also provided.
Tetranychus urticae Koch (Koch, 1836) is considered one of the main pests in hop crops Humulus lupulus L. (Cannabaceae) when found in high densities, as it causes leaf browning, plant defoliation and ...attack on flowers, reducing productivity and quality of the plant production. In this sense, the present study aims to record for the first time the occurrence of T. urticae and its injury to hops in Rio Grande do Sul State. The injuries observed were irregular spots, web formation and leaf browning. It was also observed Phytoseiulus macropilis (Banks, 1904) preying on T. urticae.
Aiming to verify the occurrence of predator mites in the Southern of Bahia State, we evaluate an agroforestry system (AFS) with açaí palm Euterpe oleracea Mart. (Arecaceae) intercropped with cupuaçu ...Theobroma grandiflorum (Willd. Ex Spreng.) K. Schum. (Malvaceae) in the Fazenda Bom Sossego located in Porto Seguro municipality, Bahia. The samples were performed monthly at 15 plants of each species, from September 2019 to February 2020. We found a total of 458 predatory mites of 14 species and eight families, of which 295 were collected on açai and 163 on cupuaçu, with 13 species on each host, being Cheyletidae sp. unique on cupuaçu and Typhlodromus (Anthoseius) sp. on açaí palm. From those, four species are new records for each host. Our results highlight that joint cultivation of açaí palm and cupuaçu as AFS is suitable and useful considering biological control practices, since the hosts share more than 90% of predator species, improving the total diversity of beneficial organisms in the AFS. Açaí palm was recently reported as host for red-palm-mite (Raoiella indica Hirst, 1924, Tenuipalpidae), with records of high population density and damage, so the implementation and maintenance of an AFS in which the hosts may share predators instead of phytophagous is an advisable strategy of Integrated pest management (IPM) increasing the effects of natural biological control and decreasing the damage by pests and use of chemical control.
This study reports the occurrence of the phytophagous mite Tetranychus marianae McGregor, 1950 (Tetranychidae), in species of the genus Piper (P. hispidum Sw., P. marginatum Jacq., P. montealegreanum ...Yunk., P. peltatum L., P. reticulatum L., and P. tuberculatum Jacq.) (Piperaceae) and the predator mite Amblyseius tamatavensis Blommers, 1974 (Phytoseiidae), in species and cultivars of Piper nigrum L., from the Piperaceae collection of Embrapa Amazônia Oriental in Belém, Pará.
The cosmopolitan pest species, Tyrophagus putrescentiae Schrank, infests various stored products and can trigger allergies and anaphylaxis. Using predatory mites as biocontrol agents against T. ...putrescentiae has been proposed. We investigated intraguild predation (IGP) between generalist phytoseiid mite Neoseiulus cucumeris and blattisociid mite Blattisocius dentriticus as potential biological control agents. In laboratory experiments, we examined individual predation capacities, considering size differences, attack latency, and feeding time. The adults of B. dentriticus were about 20 % larger than adults of N. cucumeris of the same sexes. Our population experiment with shared prey, T. putrescentiae, over about one to three weeks, indicated B. dentriticus dominance over N. cucumeris, despite prey abundance. Generalised linear models indicated size as the determining factor on predation success, with larger predators preying on smaller ones. The direction and intensity of IGP varied with predator sizes, prey life stages, and shared prey density. These findings highlight the importance of size and life stage in IGP interactions. Further research should explore field interactions and potential synergistic pest control effects. We consider the results found that they can provide more information in the IGP, which could be useful in biological pest control strategies.
•Size dictates success in intraguild predation between two predatory mites.•Life stage nuances influence intraguild predation outcomes.•Population dynamics highlights the unlikelihood in pest control synergies.
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