Re-adaptation from alternative prey to target prey increased predation of predator on target mite

2019 ◽  
Vol 24 (3) ◽  
pp. 467 ◽  
Author(s):  
Jie Su ◽  
An-Di Zhu ◽  
Guo-Dong Han ◽  
Fang Dong ◽  
Jing Chen ◽  
...  
Keyword(s):  
Natural Enemy ◽  
Spider Mite ◽  
Biocontrol Agent ◽  
Mass Rearing ◽  
Predatory Mites ◽  
Alternative Prey ◽  
Tyrophagus Putrescentiae ◽  
Potential Biocontrol Agent ◽  
Tetranychus Turkestani

Neoseiulus bicaudus (Wainstein) is a natural enemy of spider mite and thrip and also a potential biocontrol agent for Tetranychus turkestani (Tetranychidae). Tyrophagus putrescentiae (Schrank) is an important alternative prey of N. bicaudus for mass rearing. We aimed to determine whether previous long-term feeding history, rearing on alternative prey versus target prey affected the performance of N. bicaudus. Therefore, the prey preference and functional response of predatory mites were compared between three strains: N. bicaudus fed on T. turkestani (TTS); N. bicaudus fed on T. putrescentiae (TPS); and N. bicaudus re-adapted from T. putrescentiae to T. turkestani (TPRS). When fed with the target prey, the preference rate and consumption of the TPS strain were significantly lower than the TTS strain. In addition, after 3-day-re-adaptation, the predatory mites (TPRS) increased their preference rate and consumption to target prey. The results suggested that re-adaptation before release could improve the ability of N. bicaudus to control its target prey.

Effects of alternative and natural prey on body size, locomotion and dispersal of Neoseiulus bicaudus (Acari: Phytoseiidae)

2019 ◽  
Vol 24 (9) ◽  
pp. 1579-1591
Author(s):  
Jie Su ◽  
Min Liu ◽  
Zhen-Shi Fu ◽  
An-Di Zhu ◽  
Jian Ping Zhang
Keyword(s):  
Body Size ◽  
Prey Availability ◽  
Mass Rearing ◽  
Predatory Mite ◽  
The Body ◽  
Alternative Prey ◽  
Negative Effects ◽  
Natural Prey ◽  
Tetranychus Turkestani

Prey are very important for the mass rearing of natural enemies and can affect the efficiency and quality of natural enemy products. Locomotion is important in dispersal of predatory mites on plants, and such activity is affected by body size and prey availability. The study evaluates the effects of prey (alternative prey: Tyrophagus putrescentiae Schrank and natural prey: Tetranychus turkestani Ugarov & Nikolskii) on the body size, locomotion and dispersal of the predatory mite Neoseiulus bicaudus Wainstein. When fed the alternative prey, the body size and locomotion of N. bicaudus were significantly lower than when fed the natural prey. However, the dispersal of N. bicaudus fed the two prey types was similar. The results suggest that long-term feeding on alternative prey could decrease the body size and locomotion of N. bicaudus. Nevertheless, the negative effects of alternative prey did not appear to affect the dispersal of N. bicaudus. The likely reason is that the type of prey does not affect the ability of the predatory mite to locate spider mites. In other words, when it fed alternative prey, N. bicaudus could still successfully disperse and locate spider mite-infested plants in the same way as when fed the natural prey.

What habitat does spiny snout mite occupy in Tasmania

2015 ◽  
Vol 68 ◽  
pp. 446-446
Author(s):  
D.J. Wilson ◽  
P.J. Gerard
Keyword(s):  
New Zealand ◽  
Sand Dune ◽  
Biocontrol Agent ◽  
Predatory Mites ◽  
Mite Species ◽  
Predatory Mite ◽  
Habitat Specificity ◽  
Nontarget Organisms ◽  
Flea Control ◽  
Potential Biocontrol Agent

Spiny snout mite (Neomolgus capillatus) is a potential biocontrol agent for clover flea (Sminthurus viridis) a white clover pest on dairy farms in warmer and wetter parts of New Zealand In the 1990s this mite was introduced from Brittany France into Tasmania for clover flea control Results during the release programme were highly promising and subsequent anecdotal farmer reports indicate widespread decreases in damage As N capillatus is a predatory mite and already known to attack nontarget organisms habitat specificity will determine whether it could be introduced into New Zealand without risk to native insects To assess this pastures on nine of the original Tasmanian release farms and adjacent nontarget habitats ranging from bush wetlands eucalypt stands to sand dune country were sampled in April 2014 Litter samples were collected heat extracted and mite species identified Neomolgus capillatus was found at effective densities in pastures that had good clover cover Where present it displaced Bdellodes spp mites that are ineffective against clover flea No N capillatus were found in the nontarget habitats all of which lacked clover and contained other predatory mites including Bdellodes spp Therefore the preference by N capillatus for lush pastures makes it an excellent prospect for introduction as a biocontrol agent into clover flea prone regions of New Zealand

scholarly journals A Preliminary Assessment of Amblyseius andersoni (Chant) as a Potential Biocontrol Agent against Phytophagous Mites Occurring on Coniferous Plants

Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 664
Author(s):  
Ewa Puchalska ◽  
Stanisław Kamil Zagrodzki ◽  
Marcin Kozak ◽  
Brian G. Rector ◽  
Anna Mauer
Keyword(s):  
Biocontrol Agent ◽  
Mass Rearing ◽  
Predator Population ◽  
Preliminary Assessment ◽  
Amblyseius Andersoni ◽  
Food Items ◽  
Oligonychus Ununguis ◽  
Potential Biocontrol Agent ◽  
Pine Pollen ◽  
Survival And Reproduction

Development, survival and reproduction of Ambyseius andersoni (Chant), a predatory mite widely distributed in Europe, were assessed on different food items. These included two key pests of ornamental coniferous plants, i.e., Oligonychus ununguis (Jacobi) and Pentamerismus taxi (Haller) and pollen of Pinus sylvestris L. The rationale behind these experiments was to provide a preliminary assessment of the potential of A. andersoni as a biocontrol agent of the above phytophagous arthropods and evaluate pine pollen as an alternative food source for the predator. Under laboratory conditions (23 ± 0.5 °C, 70 ± 10% RH and 16L:8D) A. andersoni was able to feed, develop and reproduce on all tested diets. The shortest development time (egg to female) was obtained when the predator fed on P. taxi (mean = 5.12 d) and the longest was on pine pollen (mean = 6.55 d). The rm value was significantly higher on both tested prey (0.166 on P. taxi and 0.160 on O. ununguis) than on pollen (0.139). Thus, we do not recommend pine pollen for mass rearing of A. andersoni; however, we conclude that pollen may provide sufficient sustenance for the predator population under field conditions when prey are absent. The potential of A. andersoni as a biocontrol agent of O. ununguis and P. taxi is discussed.

Field trials of Trichomalopsis sarcophagae (Hymenoptera: Pteromalidae) in cattle feedlots: a potential biocontrol agent of filth flies (Diptera: Muscidae)

2003 ◽  
Vol 135 (4) ◽  
pp. 599-608 ◽  
Author(s):  
K.D. Floate
Keyword(s):  
Biocontrol Agent ◽  
Natural Populations ◽  
Fold Increase ◽  
Mass Rearing ◽  
Field Trials ◽  
House Fly ◽  
Stable Fly ◽  
Large Numbers ◽  
Potential Biocontrol Agent ◽  
Paired Control

AbstractA field study was performed in southern Alberta, Canada, to assess the native wasp, Trichomalopsis sarcophagae (Gahan), as a potential biocontrol agent for house fly, Musca domestica L., and stable fly, Stomoxys calcitrans (L.). The wasp was readily reared in large numbers, which allowed for the cumulative release of an estimated 4.63 million wasps into three commercial feedlots during the 2-year study. Each of several releases predictably and repeatedly enhanced parasitism of sentinel house fly pupae, whereas parasitism remained low in three paired control feedlots where wasps were not released. Releases every 2nd week had a disproportionately greater effect than releases every 2nd month. In 1998, 1.2 million wasps were released into treatment feedlots resulting in the recovery of 3 952 T. sarcophagae from 31 500 sentinel pupae (0.13 wasps/pupa). In 1999, 3.43 million wasps were released into treatment feedlots, with the recovery of 37 763 wasps from 47 720 sentinel pupae (0.79 wasps/pupa). Hence, a 2.8-fold increase in the number of wasps released in 1999 resulted in a 6.1-fold increase in the recovery of wasps. This result supports industry recommendations of regular, repeated releases of wasps every 2nd or 4th week versus one or infrequent releases throughout the summer. There was no evidence that releases augmented overwintering populations of the wasp in subsequent years. These results provide proof-of-concept for the mass-rearing and release of T. sarcophagae as an inundative biocontrol agent for the control of pest flies in cattle confinements. Further studies will be required to assess the effect of T. sarcophagae releases on natural populations of pest flies.

Validation of a methodology for rearingSpalangia cameroni(Hymenoptera: Pteromalidae) onCeratitis capitata(Diptera: Tephritidae)

2014 ◽  
Vol 146 (6) ◽  
pp. 676-683 ◽  
Author(s):  
J. Tormos ◽  
B. Sabater-Muñoz ◽  
J.D. Asís ◽  
F. Beitia
Keyword(s):  
Sex Ratio ◽  
Ceratitis Capitata ◽  
Biocontrol Agent ◽  
Sex Ratios ◽  
Mass Rearing ◽  
Laboratory Rearing ◽  
Pupal Parasitoid ◽  
Mass Rear ◽  
Laboratory Colony ◽  
Potential Biocontrol Agent

AbstractSpalangia cameroniPerkins (Hymenoptera: Pteromalidae) is a pupal parasitoid of the Medfly,Ceratitis capitata(Wiedmann) (Diptera: Tephritidae), one of the principal pests of Spanish agriculture.Spalangia cameroniis a potential biocontrol agent for this pest if methods can be developed to mass-rear it effectively onC. capitata. Here, we report on the use of freeze-killed pupae ofC. capitatato maintain a laboratory colony ofS. cameroni, with a view to setting up a mass-rearing protocol. Realised fecundity, adult progeny, sex ratio, and superparasitism level were the principal parameters analysed. No significant differences were found in respect of these parameters between living or freeze-killed Medfly pupae used as hosts, although sex ratios showed a bias towards females in the case of freeze-killed pupae. Freeze-killed pupae were concluded to present the best option for the laboratory-rearing ofS. cameroni, on account of ease of rearing, and avoidance of the emergence of Medfly adults.

scholarly journals ASSESSMENT OF DIFFERENT SPECIES OF FODDER MITES FOR MASS REARING OF THE PREDATORY MITES AMBLYSEIUS SWIRSKII AND NEOSEIULUS CUCUMERIS (MESOSTIGMATA, PHYTOSEIIDAE) UNDER LABORATORY CONDITIONS

2020 ◽  
Vol 103 (3) ◽  
pp. 177-181
Author(s):  
L. P. Krasavina ◽  
О. V. Trapeznikova
Keyword(s):  
Relative Humidity ◽  
Mass Rearing ◽  
Predatory Mites ◽  
High Density ◽  
Amblyseius Swirskii ◽  
Tyrophagus Putrescentiae ◽  
Neoseiulus Cucumeris ◽  
Laboratory Conditions

In-lab rearing of the predatory mites Amblyseius swirskii and Neoseiulus cucumeris on the fodder mites Tyrophagus putrescentiae and Carpoglyphus lactis has been assessed. The study was performed for species kept separately and together. All trials were carried out in 5-fold replications during 25 days at temperature 23–25 °C, the length of daylight of 18 hours, and relative humidity of 85–90 %. After 25 days, T. putrescentiae outnumbered C. lactis in 1.3 times while reared separately, and in 118 times in cases when they were reared together. After 25 days of rearing the predatory mites N. cucumeris and A. swirskii together the first one outnumbered the second one in 9.1 times while feeding on T. putrescentia and in 3.2 times while feeding on C. lactis. The possibility of in-lab rearing of N. cucumeris on both species of the fodder mites was shown, while A. swirskii feeding on T. putrescentiae demonstrated the increase of its density during first two weeks only. Neoseiulus cucumeris is more competitive than A. swirskii because it can achieve high density on different species of fodder mites. Different species of mites must be strictly isolated from each other during their rearing to prevent contamination.

scholarly journals Ooctonus vulgatus (Hymenoptera, Mymaridae), a potential biocontrol agent to reduce populations of Philaenus spumarius (Hemiptera, Aphrophoridae) the main vector of Xylella fastidiosa in Europe

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8591 ◽  
Author(s):  
Xavier Mesmin ◽  
Marguerite Chartois ◽  
Guénaëlle Genson ◽  
Jean-Pierre Rossi ◽  
Astrid Cruaud ◽  
...  
Keyword(s):  
Biocontrol Agent ◽  
Xylella Fastidiosa ◽  
Parasitoid Wasp ◽  
Large Data ◽  
Mass Rearing ◽  
Data Sets ◽  
Philaenus Spumarius ◽  
Parasitism Rates ◽  
Starting Point ◽  
Potential Biocontrol Agent

As a vector of Xylella fastidiosa (Wells, 1987) in Europe, the meadow spittlebug Philaenus spumarius (Linnaeus, 1758) (Hemiptera, Aphrophoridae) is a species of major concern. Therefore, tools and agents to control this ubiquitous insect that develops and feeds on hundreds of plant species are wanted. We conducted a field survey of P. spumarius eggs in Corsica and provide a first report of Ooctonus vulgatus Haliday, 1833 (Hymenoptera, Mymaridae) as a potential biocontrol agent of P. spumarius in Europe. To allow species identification, we summarized the main characters distinguishing O. vulgatus from other European species of Ooctonus and generated COI DNA barcodes. Parasitism rates were variable in the four localities included in the survey but could reach 69% (for an average number of eggs that hatched per locality of 109). Based on the geographic occurrences of O. vulgatus obtained from the literature, we calibrated an ecological niche model to assess its potential distribution in the Holarctic. Obviously, several questions need to be addressed to determine whether O. vulgatus could become an effective biocontrol agent of P. spumarius in Europe. So far, O. vulgatus has been reared only from P. spumarius eggs, but its exact host-range should be evaluated to ensure efficiency and avoid non-target effect. The top-down impact of the parasitoid on vector populations should also be assessed on large data sets. Finally, the feasibility of mass rearing should be tested. We hope this report serves as a starting point to initiate research on this parasitoid wasp to assess whether it could contribute to reduce the spread and impact of X. fastidiosa in Europe.

The dried fruit mite Carpoglyphus lactis (Acari: Carpoglyphidae) is a suitable alternative prey for Amblyseius herbicolus (Acari: Phytoseiidae)

2021 ◽  
Author(s):  
Keshi Zhang ◽  
Zhi-Qiang Zhang
Keyword(s):  
Reproductive Performance ◽  
Biocontrol Agent ◽  
Mass Rearing ◽  
Generalist Predators ◽  
Alternative Prey ◽  
Suitable Alternative ◽  
Final Population ◽  
Dried Fruit ◽  
Typha Orientalis ◽  
Amblyseius Herbicolus

Being generalist predators makes many members of the Phytoseiidae family a more favourable choice for biocontrol. Amblyseius herbicolus, a predator of several phytophagous pest mites and insects, has recently gained focus as an important biocontrol agent. Most studies focus on providing alternative food such as pollens as a way to increase their persistence on the targets when prey is absent. In this study, we evaluated the developmental and reproductive performance of A. herbicolus on two different diets: the dried fruit mite Carpoglyphus lactis and Raupo Typha orientalis pollen. The groups treated with C. lactis took 7 days to reach adulthood, while the groups treated with pollen took 11 days. The pollen-treated mites did not reproduce but this is likely due to the reduction of pollen quality. When given C. lactis, A. herbicolus produced more than 20 eggs over two weeks and the adults survived 18–19 days. The ratio of A. herbicolus egg to C. lactis adult used (1:20, 40 & 120) in the experiment did not affect the final population size. Cannibalism and competition seemed to affect all treatments, especially those cells started with three A. herbicolus eggs. Under laboratory conditions, A. herbicolus can be successfully cultured using C. lactis, which is an advantageous method for the laboratory and mass rearing of A. herbicolus.

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