Commercial and Naturally Occurring Fly Parasitoids (Hymenoptera: Pteromalidae) as Biological Control Agents of Stable Flies and House Flies (Diptera: Muscidae) on California Dairies

1990 ◽  
Vol 83 (3) ◽  
pp. 799-806 ◽  
Author(s):  
J. A. Meyer ◽  
B. A. Mullens ◽  
T. L. Cyr ◽  
C. Stokes
Keyword(s):  
Biological Control ◽  
Biological Control Agents ◽  
House Flies ◽  
Stable Flies ◽  
Naturally Occurring

SURVEY AND RELEASE OF PARASITOIDS (HYMENOPTERA) ATTACKING HOUSE AND STABLE FLIES (DIPTERA: MUSCIDAE) IN DAIRY OPERATIONS

1999 ◽  
Vol 131 (6) ◽  
pp. 743-756 ◽  
Author(s):  
Tanja McKay ◽  
Terry D. Galloway
Keyword(s):  
House Fly ◽  
Stomoxys Calcitrans ◽  
Stable Fly ◽  
Nasonia Vitripennis ◽  
Pupal Parasitoid ◽  
House Flies ◽  
Stable Flies ◽  
Naturally Occurring ◽  
The Status ◽  
No Releases

AbstractIn 1995, Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae), a commercially available pupal parasitoid of the house fly, Musca domestica L., and stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), was purchased to examine the status of wasps being sold to Manitoba producers. Percentage of pupae parasitized, numbers of parasitoids per pupa, total parasitoids, and parasitoid sex ratio were determined for each shipment of parasitoids received. To determine the extent to which these wasps could successfully parasitize house flies and stable flies, parasitoids were released weekly in four Manitoba dairy barns and levels of parasitism estimated. In 10 622 freeze-killed sentinel house fly pupae, 2.2% were parasitized throughout the season by N. vitripennis, and 5.8% were parasitized by eight other species of parasitoids. Of 11 897 naturally occurring house fly and stable fly pupae, 0.6% were parasitized by N. vitripennis, and 3.4% by eight other species of parasitoids. In four barns where there were no releases of N. vitripennis, 1.1% of 11 779 sentinel pupae were parasitized by four species of parasitoids and 3.8% of 8384 naturally occurring house fly and stable fly pupae were parasitized by nine species. The release of an estimated 3 648 093 N. vitripennis did not result in substantial parasitism in either sentinel pupae or naturally occurring pupae. In 1996, live sentinel house fly pupae (n = 50 842) and house fly and stable fly pupae occurring naturally (n = 4691) were collected in two of the nonrelease barns from the 1995 study to examine the activity of endemic parasitoids. Of the sentinel and naturally occurring pupae sampled, 4.0% and 9.4% were parasitized, respectively. Phygadeuon fumator Gravenhörst (Hymenoptera: Ichneumonidae) was the most abundant parasitoid, accounting for 97.4% and 79.9% of parasitoids collected from sentinel pupae and naturally occurring pupae, respectively. Other parasitoids included Urolepis rufipes (Ashmead), Muscidifurax raptor Girault and Sanders, Muscidifurax zaraptor Kogan and Legner, Spalangia subpunctata Först, Spalangia cameroni Perkins, Spalangia nigra Latreille, and a species of Trichomalopsis Crawford (Hymenoptera: Pteromalidae).

scholarly journals Monitoring Bactericera cockerelli and associated insect populations in potatoes in South Auckland

2011 ◽  
Vol 64 ◽  
pp. 269-275 ◽  
Author(s):  
G.P. Walker ◽  
F.H. MacDonald ◽  
N.J. Larsen ◽  
A.R. Wallace
Keyword(s):  
Biological Control ◽  
Bactericera Cockerelli ◽  
Biological Control Agents ◽  
Sticky Traps ◽  
Naturally Occurring ◽  
Insect Populations ◽  
Trap Catches ◽  
Yellow Sticky Traps

Bactericera cockerelli (the tomatopotato psyllid; TPP) and associated insects were monitored weekly in unsprayed potatoes at Pukekohe by using yellow sticky traps and sampling plants from late July 2009 until mid March 2010 TPP adult catches and egg and nymphal infestations were absent or low until mid December Other exotic and native psyllid species dominated trap catches until TPP populations increased markedly in mid January and peaked at 120 adults per trap in late February with egg numbers reaching 520 per plant a week later TPP nymphs peaked at 260 per plant in early February Micromus tasmaniae (brown lacewing) was common in spring and summer but Melanostoma fasciatum (small hover fly) became the dominant predator peaking at 162 eggs and 35 larvae per plant in mid January Naturally occurring predators appear to be important biological control agents of aphids small caterpillars and probably TPP on potatoes at Pukekohe

scholarly journals Parthenogenesis-Inducing Microorganisms in Parasitic Hymenoptera: Their Mode of Action and Utilization for Improvement of Biological Control Agents

1996 ◽  
Author(s):  
John H. Werren ◽  
Einat Zchori-Fein ◽  
Moshe Coll
Keyword(s):  
Biological Control ◽  
Sex Ratio ◽  
Horizontal Transmission ◽  
Surface Protein ◽  
Intracellular Bacteria ◽  
Biological Control Agents ◽  
Parasitic Hymenoptera ◽  
Naturally Occurring ◽  
The One ◽  
Wolbachia Density

Wolbachia are intracellular bacteria known to cause reproductive and sex ratio disorders in many insects. In various parasitic Hymenoptera, Wolbachia induce thelytokous reproduction. The overall goal of this research was the improvement of biological control agents by reversion of their mode of reproduction. This was attempted from two directions: 1) studying the effect of naturally occurring Wolbachia on the thelytokous species Muscidifuraxuniraptor and 2) trying to transmit thelytoky-inducing Wolbachia to Nasoniavitripennis. In M. uniraptor, gamete duplication was found to be the mode of diploidy restoration and Wolbachia density had a strong effect on sex ratio but not on host fitness. Studies on the natural horizontal transmission of Wolbachia between Nasonia wasps and their Protocalliphora hosts using the Wolbachia Outer Surface Protein (WOSP) gene revealed that (a) two Nasonia species (N. giraulti and N. longicornis) possess closely related strains of B-group Wolbachia, but N. vitripennisapparently acquired B Wolbachia by horizontal transmission from an unknown source, (b) Nasonia and its Protocalliphora host have similar Wolbachia, and (c) the Protocalliphora Wolbachia WOSP gene is a recombinant between the one found in N. giraulti/longicornis and N. vitripennis. Results show parasitoid-host insect transmission of Wolbachia and recombination among Wolbachia strains. Results from gynandromorph studies suggest a novel mechanism of sex determination in Nasonia. 

Biological control of house flies Musca domestica and stable flies Stomoxys calcitrans (Diptera: Muscidae) by means of inundative releases of Spalangia cameroni (Hymenoptera: Pteromalidae)

2004 ◽  
Vol 94 (6) ◽  
pp. 555-567 ◽  
Author(s):  
H. Skovgård ◽  
G. Nachman
Keyword(s):  
Biological Control ◽  
Musca Domestica ◽  
Biological Control Agent ◽  
Control Agent ◽  
House Fly ◽  
Stomoxys Calcitrans ◽  
Stable Fly ◽  
House Flies ◽  
Explanatory Variables ◽  
Stable Flies

AbstractThe efficacy of the pupal parasitoid Spalangia cameroni Perkins as a biological control agent was tested against house flies Musca domestica Linnaeus and stable flies Stomoxys calcitrans (Linnaeus) in one dairy cattle and two pig installations in Denmark. Weekly releases of S. cameroni from April through to September–October 1999 and 2000 resulted in significant suppressions of house fly populations to below nuisance level, whereas no effect on stable flies was found. Parasitism was significantly higher in the release years compared to the control years, but was below 25% averaged over the fly season for each farm. A statistical model based on a functional relationship between the innate capacity of increase of the two fly species and three explanatory variables (air temperature, fly density and parasitism) provided a fairly good fit to data with the abundances of house flies and stable flies explained mostly by temperature, but intra- and interspecific competition, and parasitism had a significant effect as well. Overall, the model was capable of explaining 14% and 6.6% of the total variation in data for house fly and stable fly, respectively. Spalangia cameroni was the predominant parasitoid to emerge from exposed house fly pupae, but from mid summer onwards Muscidifurax raptor Girault & Sanders (Hymenoptera: Pteromalidae) was also quite common. The study indicated that biological control of house flies can be an efficient alternative to chemical control.

Biology and Ecology of the Platte Thistle (Cirsium canescens)

Weed Science ◽  
1981 ◽  
Vol 29 (6) ◽  
pp. 686-692 ◽  
Author(s):  
William O. Lamp ◽  
M. K. McCarty
Keyword(s):  
Biological Control ◽  
Growth Rate ◽  
Dry Weight ◽  
First Year ◽  
Biological Control Agents ◽  
Vegetative Cover ◽  
Seedling Mortality ◽  
Naturally Occurring ◽  
Monocarpic Perennial ◽  
Moisture Conditions

Aspects of the life history and population dynamics of the Platte thistle (Cirsium canescensNutt.), a rangeland weed, were studied in the Nebraska Sandhills from 1977 through 1979. This thistle is a monocarpic perennial, reproducing only by seed production, which typically occurs in small, scattered groups of plants. Seedling mortality at four sites was 75% during the first year, mostly because of dry moisture conditions. In plots with good vegetative cover, thistle rosette plants had a lower mortality rate, but growth rate was slower than that of rosette plants in plots with sparse vegetative cover. Seed heads developed during May and June and gained more than one-half of their dry weight shortly before maturing. Plants averaged 72, 197, and 303 seeds at three sites. Within sites, plants produced seeds in proportion to the number of seed heads per plant. Although naturally occurring biological-control agents have little effect on the vegetative growth phase of the life cycle, they greatly reduce the production of seeds.

Yellow Brazilian Pepper-tree Leaf Galler (suggested common name) Calophya latiforceps Burckhardt (Insecta: Hemiptera: Calophyidae: Calophyinae)

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian
Keyword(s):  
Biological Control ◽  
North America ◽  
Natural Enemies ◽  
Host Plants ◽  
Classical Biological Control ◽  
Biological Control Agents ◽  
Pepper Tree ◽  
Brazilian Pepper ◽  
Close Relatives ◽  
Tree Leaf

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]

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