| control of the two-spotted spider mite (tetranychus urticae koch) in glasshouse roses. | populations of the two-spotted spider mite, tetranychus urticae, can increase rapidly in glasshouse production, especially during summer. both chemical and biological control must start at low densities for effective control. the combined efficacy of phytoseiulus persimilis and the predatory midge, feltiella acarisuga to control t. urticae on roses was evaluated in 2002. a second year rose crop (rosa hybrida cv. first red) was used for this experiment. two glasshouse compartments of 200 m2 each ... | 2003 | 15149115 |
| amblyseius andersoni chant (acari: phytoseiidae), a successful predatory mite on rosa spp. | roses on commercial nurseries commonly suffer from attacks by the two-spotted spider mite, tetranychus urticae, which have a negative influence on growth and quality. the aim of this project is to find natural enemies that are well adapted to roses, and may improve biological control. at different sites such as a plant collection garden, public parks and field boundaries, leaves were sampled from roses to identify the indigenous species of predatory mites. amblyseius andersoni was amongst other ... | 2004 | 15759407 |
| description of a new species of aphanogmus thomson (hymenoptera, ceraphronidae) that parasitizes acarivorous gall midges of feltiella (diptera, cecidomyiidae) in japan. | in 2008-2009, we reared small ceraphronids (about 0.5 mm in body length) from cocoons that had been made possibly by two acarivorous species, feltiella acarisuga (vallot) and feltiella acarivora (zehntner) (diptera: cecidomyiidae) in okinawa, japan. detailed morphological observation revealed that the ceraphronid was a new species of aphanogmus thomson (hymenoptera: ceraphronidae). we describe it as aphanogmus flavigastris matsuo, sp. n. identification of the aphanogmus species is essential to e ... | 2016 | 27408578 |
| functional responses and prey-stage preferences of a predatory gall midge and two predacious mites with twospotted spider mites, tetranychus urticae, as host. | the twospotted spider mite, tetranychus urticae koch (acari: tetranychidae), is an important pest of vegetables and other economically important crops. this study evaluated the functional responses and prey-stage preferences of three species of predators, a predatory gall midge, feltiella acarisuga (vallot) (diptera: cecidomyiidae), and two predatory mite species, neoseiulus californicus (mcgregor) (acari: phytoseiidae) and amblyseius swirskii (anthiashenriot), with t. urticae as the host, under ... | 2013 | 23879370 |
| predation and life table of feltiella acarisuga (diptera: cecidomyiidae) preying on eggs of tetranychus urticae (acari: tetranychidae). | feltiella acarisuga (vallot) is a common gall midge that feeds on many species of spider mites. predation and all major biological and life table parameters of f. acarisuga were determined using eggs of the twospotted spider mite, tetranychus urticae (koch), as prey under laboratory conditions (26.7 degrees c, 85% rh, and 14:10 [l:d] h). first-, second-, and third-instar f. acarisuga larvae consumed an average of 37.8, 60.4, and 87.2 t. urticae eggs per day, respectively. larvae consumed a total ... | 2007 | 17445371 |