scholarly journals Intraguild aggressiveness between an alien and a native predatory mite

2019 ◽  
Vol 24 (11) ◽  
pp. 2094-2105
Author(s):  
Escudero-Colomar L.A. ◽  
Creus E. ◽  
Chorąży A. ◽  
Walzer A.
Keyword(s):  
Dominant Species ◽  
Biocontrol Agent ◽  
First Record ◽  
Predatory Mite ◽  
Amblyseius Andersoni ◽  
Establishment Success ◽  
Alien Predator ◽  
Thrips Species ◽  
Amblydromalus Limonicus ◽  
Native Predator

The predatory mite Amblydromalus limonicus, non-native in Europe, can be used legally in several European countries as greenhouse biocontrol agent against thrips species, although this species is also able to feed on whiteflies and gall mites. The first record of the unintended occurrence of A. limonicus in apple orchards in Europe comes from Catalonia (Spain), where A. limonicus is well established in the native predatory mite community since 2011. The dominant species in this community is Amblyseius andersoni, which has a similar life-style as A. limonicus (large, aggressive predator with broad diet range) making intraguild (IG) interactions between the two predators likely. Thus, we tested the IG aggressiveness of native and alien female predators, when provided with IG prey (larvae). Alien females of A. limonicus proved to be highly aggressive IG predators against native larvae of A. andersoni, which were attacked earlier and more frequently than alien larvae by the native predator. Nearly all attacks by the alien predator resulted in the death of native IG prey, whereas about 10% of the alien intraguild prey escaped the attacks of the native predator. Additionally, native IG prey is smaller than alien prey, which should facilitate the overwhelming by the alien predator. We argue that the strong aggressive intraguild behavior of A. limonicus is contributing to its establishment success in the native predatory mite community.

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.

scholarly journals Benefit-cost Trade-offs of Early Learning in Foraging Predatory Mites Amblyseius Swirskii

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Inga C. Christiansen ◽  
Sandra Szin ◽  
Peter Schausberger
Keyword(s):  
Early Life ◽  
Biocontrol Agent ◽  
Early Learning ◽  
Predatory Mites ◽  
Predatory Mite ◽  
Amblyseius Swirskii ◽  
Trade Offs ◽  
Fitness Benefits ◽  
Benefit Cost ◽  
Juvenile Development

Abstract Learning is changed behavior following experience, and ubiquitous in animals including plant-inhabiting predatory mites (Phytoseiidae). Learning has many benefits but also incurs costs, which are only poorly understood. Here, we addressed learning, especially its costs, in the generalist predatory mite Amblyseius swirskii, a biocontrol agent of several herbivores, which can also survive on pollen. The goals of our research were (1) to scrutinize if A. swirskii is able to learn during early life in foraging contexts and, if so, (2) to determine the costs of early learning. In the experiments, we used one difficult-to-grasp prey, i.e., thrips, and one easy-to-grasp prey, i.e., spider mites. Our experiments show that A. swirskii is able to learn during early life. Adult predators attacked prey experienced early in life (i.e., matching prey) more quickly than they attacked unknown (i.e., non-matching) prey. Furthermore, we observed both fitness benefits and operating (physiological) costs of early learning. Predators receiving the matching prey produced the most eggs, whereas predators receiving the non-matching prey produced the least. Thrips-experienced predators needed the longest for juvenile development. Our findings may be used to enhance A. swirskii’s efficacy in biological control, by priming young predators on a specific prey early in life.

Predation, prey preference and reproduction of predatory mites Amblydromalus limonicus (Garman), Amblyseius herbicolus (Chant) and Neoseiulus cucumeris (Oudemans) (Mesostigmata: Phytoseiidae) on immature Sericothrips staphylinus Haliday (Thysanoptera: Thripidae), a biocontrol agent of gorse

2019 ◽  
Vol 24 (3) ◽  
pp. 508
Author(s):  
Wendy Lam ◽  
Quentin Paynter ◽  
Zhi-Qiang Zhang
Keyword(s):  
Biological Control ◽  
New Zealand ◽  
Choice Experiment ◽  
Biocontrol Agent ◽  
Predation Rate ◽  
Mite Species ◽  
Oviposition Rate ◽  
Neoseiulus Cucumeris ◽  
Amblydromalus Limonicus ◽  
Amblyseius Herbicolus

Gorse, Ulex europaeus, is an invasive weed that has serious agricultural, economic and ecological impacts. Although various biological control agents have been released in New Zealand, these have showed no noticeable impact on gorse populations. One such agent, Sericothrips staphylinus, was introduced to New Zealand in 1990 and although laboratory impact studies indicated it was a highly promising gorse biological control agent, it has not been as effective as was hoped. We hypothesized this was due to predation by natural enemies. This study investigated the predation and oviposition rates of three phytoseiid mites (Amblydromalus limonicus, Amblyseius herbicolus, and Neoseiulus cucumeris) that have been found on gorse plants in New Zealand on three S. staphylinus stages (1st instar larvae, 2nd instar larvae, and prepupa) in both choice and non-choice conditions. In non-choice conditions, A. limonicus had the highest predation and oviposition rate across all three immature stages, and N. cucumeris had the lowest. Amblydromalus  limonicus, A. herbicolus, and N. cucumeris all had their highest predation rate when consuming 1st instar larvae, and their lowest predation rate when consuming prepupa. In the choice experiment, all three predatory mite species consumed their highest proportion of 1st instar larvae, and their lowest proportion of prepupae.  The oviposition rate of all three mite species in the choice experiment was similar to the oviposition rate when presented with 1st instar larvae only. The results from this study confirm that A. limonicus, A. herbicolus, and N. cucumeris can predate and reproduce on S. staphylinus 1st instar larvae, 2nd instar larvae, and prepupa. This indicates that predation may be the reason why S. staphylinus is an ineffective biocontrol agent in New Zealand. 

The predatory mite Typhlodromus pyri (Acari: Phytoseiidae) as a biocontrol agent of Eriophyes pyri (Acari: Eriophyidae) on pear

Biologia ◽  
2011 ◽  
Vol 66 (1) ◽  
Author(s):  
Ján Praslička ◽  
Janka Schlarmannová ◽  
Barbora Matejovičová ◽  
Ján Tancík
Keyword(s):  
Biological Activity ◽  
Untreated Control ◽  
Biocontrol Agent ◽  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
The Other ◽  
Control Group ◽  
Untreated Control Group ◽  
Other Hand

AbstractThe effectiveness of the predatory mite Typhlodromus pyri and of an application of Polysulphide-Ca was compared during 2006–2008. The experiment showed differences in infestation levels of pear leaves caused by Eriophyes pyri. The highest percentage of leaves with symptoms was found in untreated control group (⊘ 20.9%); the lowest percentage was found in plots treated with T. pyri (⊘ 3.7%); and a slightly higher percentage was found in plots treated with Polysulphide-Ca (⊘ 8.6%). During 2006–2008 the percentage of leaves with symptoms was approximately the same only in the untreated control plots (from 20.3% to 21.5%). The percentage of leaves with characteristic symptoms in plots treated with T. pyri decreased from 5.5% in 2006 to 4.3% in 2007, and to 1.3% in 2008. On the other hand, the percentage of leaves with symptoms in plots treated with Polysulphide-Ca increased from 5.5% in 2006 to 8.5% in 2007, and to 11.8% in 2008. The intensity of symptoms on infested leaves was also different depending on treatments and years. The average biological activity was 82.4% in plots receiving releases of T. pyri and 58.8% in plots treated with Polysulphide-Ca.

scholarly journals Aleurocanthus spiniferus (Hemiptera: Aleyrodidae) in Some European Countries: Diffusion, Hosts, Molecular Characterization, and Natural Enemies

Insects ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 42 ◽  
Author(s):  
Francesco Nugnes ◽  
Stefania Laudonia ◽  
Giovanni Jesu ◽  
Maurice Gerardus Maria Jansen ◽  
Umberto Bernardo ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Natural Enemies ◽  
Host Plants ◽  
Biocontrol Agent ◽  
First Record ◽  
New Host ◽  
Ladybird Beetle ◽  
Albanian Population ◽  
First Time

After the first record in 2008 in Southeast Italy, the alien invasive and quarantine pest Aleurocanthus spiniferus (orange spiny whitefly—OSW) has gradually spread throughout Europe, infesting several new host plants in addition to the known hosts. Molecular characterization of some Italian populations and a newly found Albanian population highlighted two different haplotypes invading Europe, belonging to one of the haplogroups previously recorded in China. A predator was recorded for the first time in several fields in Italy in association with OSW and other whitefly species. It was successively identified through a morpho-molecular characterization as a Nearctic member of the tribe Serangiini, the ladybird beetle, Delphastus catalinae. This predator represents a promising biocontrol agent to manage A. spiniferus outbreaks in Italy and other invaded countries.

scholarly journals Observations on the flight pattern of some Phlaeothripidae (Thysanoptera) species by using suction trap in Hungary

2016 ◽  
Vol 8 (1) ◽  
pp. 16-26 ◽  
Author(s):  
Szilvia Orosz ◽  
Ágnes Szénási ◽  
János Puskás ◽  
Rita Ábrahám ◽  
Andrea Fülöp ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Dominant Species ◽  
Meteorological Factors ◽  
Sunshine Duration ◽  
First Record ◽  
Flight Activity ◽  
Air Pressure ◽  
Flight Period ◽  
Flight Pattern ◽  
Suction Trap

Abstract In this study, the seasonal flight activity of the Phlaeothripidae (Thysanoptera) species was studied by using suction trap, in South-East Hungary, in the years 2000 and 2004 from April to October. The flight period of two dominant species, namely Haplothrips angusticornis Priesner and Haplothrips aculeatus Fabricius (Thysanoptera: Phlaeothripidae), was observed in high number in Europe. Also, it was the first record of mass flight observation of H. angusticornis. In addition, the effect of meteorological factors, such as temperature, sunshine duration, relative humidity, air pressure, and their influences, were evaluated.

scholarly journals Dichromothrips corbetti (Priesner, 1936) (Thysanoptera: Thripidae): uma nova praga quarentenária em orquídeas no Brasil

2020 ◽  
Vol 2 ◽  
pp. ec02030
Author(s):  
Adriano Cavalleri ◽  
Rogério M. de O. Alves ◽  
Élison Fabrício B. Lima
Keyword(s):  
South America ◽  
Southeast Asia ◽  
First Record ◽  
The State ◽  
Flower Buds ◽  
Quarantine Pest ◽  
Thrips Species ◽  
First Time

Dichromothrips corbetti (Priesner, 1936) (Thysanoptera: Thripidae): a new quarantine pest in orchids in Brazil Dichromothrips corbetti (Priesner, 1936), listed as quarantine pest by the Brazilian Ministry of Agriculture, is recorded for the first time in Brazil. Specimens were first detected in the state of Bahia causing chlorosis and deformation on leaves, flowers and flower buds of Vanda and Mokara and Aranda orchids. This thrips species is native to Southeast Asia, but widely reported in countries of Europe and Oceania. This is the first record of D. corbetti in South America.

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