Host Location and Utilization by Selected Parasitoids of Bemisia argentifolii (Homoptera: Aleyrodidae): Implications for Augmentative Biological Control

1998 ◽  
Vol 27 (3) ◽  
pp. 773-784 ◽  
Author(s):  
Kevin M. Heinz ◽  
Michael P. Parrella
Keyword(s):  
Biological Control ◽  
Host Location ◽  
Bemisia Argentifolii ◽  
Augmentative Biological Control

Mass Rearing Bemisia Parasitoids for Support of Classical and Augmentative Biological Control Programs

2014 ◽  
pp. 145-162 ◽  
Author(s):  
John A. Goolsby ◽  
Matthew A. Ciomperlik ◽  
Gregory S. Simmons ◽  
Charles J. Pickett ◽  
Juli A. Gould ◽  
...  
Keyword(s):  
Biological Control ◽  
Mass Rearing ◽  
Augmentative Biological Control ◽  
Control Programs

Mass rearing and augmentative biological control evaluation ofRhynocoris fuscipes(Hemiptera: Reduviidae) against multiple pests of cotton

2017 ◽  
Vol 73 (8) ◽  
pp. 1743-1752 ◽  
Author(s):  
Majesh Tomson ◽  
Kitherian Sahayaraj ◽  
Vivek Kumar ◽  
Pasco B Avery ◽  
Cindy L McKenzie ◽  
...  
Keyword(s):  
Biological Control ◽  
Mass Rearing ◽  
Augmentative Biological Control ◽  
Control Evaluation

Selectivity of insecticides to Encarsia pergandiella (Hymenoptera: Aphelinidae), an endoparasitoid of Bemisia argentifolii (Hemiptera: Aleyrodidae)

1997 ◽  
Vol 87 (5) ◽  
pp. 525-531 ◽  
Author(s):  
P.A. Stansly ◽  
T.-X. Liu
Keyword(s):  
Biological Control ◽  
Mineral Oil ◽  
South Florida ◽  
Bemisia Argentifolii ◽  
Neem Extract ◽  
Tomato Production ◽  
Sugar Esters ◽  
Wide Range ◽  
Glass Surfaces ◽  
Selective Insecticides

AbstractEncarsia pergandiella Howard is the most abundant parasitoid of silverleaf whitefly, Bemisia argentifolii Bellows & Perring, in south Florida vegetable fields and can contribute significantly to natural biological control of this and other whitefly species. However, quality standards, costs, and risks in commercial tomato production are high, resulting in frequent recourse to chemical control. Therefore, successful utilization of biological control could depend on compatibility of the parasitoid with selective insecticides. We tested a wide range of potentially selective insecticides, represented by a mineral oil, an insecticidal soap, a neem seed extract and synthetic and natural sugar esters, against eggs, first and third instar larvae, pupae and adults, using a pyrethroid, CaptureR (20 g bifenthrin/1 EC), for comparison. CaptureR residues on nymphs exposed to adult parasitoids reduced parasitization more than other materials tested, and were most toxic to all parasitoid stages. Mineral oil caused high mortality to immature parasitoids, and residues reduced parasitization of E. pergandiella. However, oil residues were much less toxic to adults if applied as a spray to leaf surfaces than as a dip to a leaf and especially glass surfaces. In contrast, the toxicity of CaptureR was high regardless of bioassay method. Neem extract, insecticidal soap and both sugar esters tested had little or no effect on E. pergandiella. These latter materials could be considered selective in respect to E. pergandiella and might be used to suppress B. argentifolii without decimating parasitoid populations.

Evaluating insect-mediated dispersal of Scytalidiumuredinicola for biological control of western gall rust

1996 ◽  
Vol 26 (10) ◽  
pp. 1754-1760 ◽  
Author(s):  
Cameron R. Currie ◽  
Yasu Hiratsuka
Keyword(s):  
Biological Control ◽  
Lodgepole Pine ◽  
Sticky Trap ◽  
Small Scale ◽  
Promising Candidate ◽  
Experimental Conditions ◽  
Mark Recapture ◽  
Release Experiment ◽  
Augmentative Biological Control

The potential for augmentative biological control of western gall rust, caused by Endocronartiumharknessii (J.P. Moore) Y. Hiratsuka, on lodgepole pine (Pinuscontorta Dougl. var. latifolia Engelm.) was investigated near Hinton, Alberta. We sought to determine whether a mycoparasite, Scytalidiumuredinicola Kuhlman et al., of western gall rust could be enhanced through releases of a beetle, Epuraeaobliquus Hatch, which can serve as a vector for the mycoparasite. Mycoparasites parasitized increasing proportions of the sporulating tissue on older galls, so that most galls 10 years or older had more than 95% of their sporulating surface parasitized. Scytalidiumuredinicola was the most common mycoparasite in the sporulating tissue of western gall rust, was present early in the season, and appeared to overwinter inside the tissue of the gall. Adults and larvae of E. obliquus were important in spreading the mycoparasite across the surface of galls, especially on galls younger than 10 years. From a mark recapture experiment and sticky-trap sampling, it was determined that E. obliquus is strongly attracted to western gall rust and therefore is a promising candidate to disseminate the mycoparasite. In a small-scale release experiment, beetles inoculated with S. uredinicola did not successfully initiate significant numbers of infections. However, of the few infections initiated under experimental conditions, all occurred in the treatment providing beetle access.

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