Enhancing "Psyttalia concolor" (Szépligeti) (Hymenoptera: Braconidae) in olive groves to increase biological control of the olive fruit fly = Incrementar la presencia de "Psyttalia concolor" (Szépligeti) (Hymenoptera: Braconidae) en los olivares para mejorar el control biológico de la mosca del olivo

Abstract The olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae), is a key pest of olive groves. Because of its economic importance and problems associated with chemical control, new approaches to reduce the damage caused by this pest and a deeper knowledge of the biology of the insect and the relationship of landscape structure to different biological parameters are needed. B. oleae can fly long distances and its ability to move within the landscape can determine the damage caused to olive groves. This work evaluates the effect of landscape structure on olive fruit fly abundance, movements and damage at three times of year—spring, early autumn and late autumn—in central Spain. This area is less dominated by olive groves than southern Spain, where the relationship between olive grove area and B. oleae abundance is already known. A cost-distance analysis is used to evaluate the landscape effect on the movement of the fly along the crop cycle. The olive grove area is the landscape composition factor with the greatest effect on the parameters studied, with a decrease in B. oleae abundance in a more complex landscape during spring and early autumn. The cost-distance analysis shows that the olive fruit fly moves mainly in spring, and amongst olive groves. There is no evidence that land uses other than olive groves serve as a summer refuge for B.oleae in the studied landscape context. Olive grove area and land use diversity index had significant effects on olive damage in more than one year.

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Psyttalia lounsburyi (Hymenoptera: Braconidae), potential biological control agent for the olive fruit fly in California

Biological Control ◽

10.1016/j.biocontrol.2007.08.010 ◽

2008 ◽

Vol 44 (1) ◽

pp. 79-89 ◽

Cited By ~ 39

Author(s):

Kent M. Daane ◽

Karen R. Sime ◽

Xin-geng Wang ◽

Hannah Nadel ◽

Marshall W. Johnson ◽

...

Keyword(s):

Biological Control ◽

Biological Control Agent ◽

Fruit Fly ◽

Control Agent ◽

Olive Fruit Fly ◽

Olive Fruit

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Non-target host risk assessment of the idiobiont parasitoidBracon celer(Hymenoptera: Braconidae) for biological control of olive fruit fly in California

Biocontrol Science and Technology ◽

10.1080/09583150902974384 ◽

2009 ◽

Vol 19 (7) ◽

pp. 701-715 ◽

Cited By ~ 11

Author(s):

Hannah Nadel ◽

Kent M. Daane ◽

Kim A. Hoelmer ◽

Charles H. Pickett ◽

Marshall W. Johnson

Keyword(s):

Risk Assessment ◽

Biological Control ◽

Fruit Fly ◽

Olive Fruit Fly ◽

Olive Fruit

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Psyttalia cf. concolor (Hymenoptera: Braconidae) for Biological Control of Olive Fruit Fly (Diptera: Tephritidae) in California

Environmental Entomology ◽

10.1603/0046-225x(2008)37[764:pcchbf]2.0.co;2 ◽

2008 ◽

Vol 37 (3) ◽

pp. 764-773 ◽

Cited By ~ 35

Author(s):

Victoria Y. Yokoyama ◽

Pedro A. Rendón ◽

John Sivinski

Keyword(s):

Biological Control ◽

Fruit Fly ◽

Olive Fruit Fly ◽

Olive Fruit

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Effects of Peganum harmala (Zygophyllaceae) Seed Extract on the Olive Fruit Fly (Diptera: Tephritidae) and Its Larval Parasitoid Psyttalia concolor (Hymenoptera: Braconidae)

Journal of Economic Entomology ◽

10.1603/029.102.0628 ◽

2009 ◽

Vol 102 (6) ◽

pp. 2233-2240 ◽

Cited By ~ 16

Author(s):

Junaid ur Rehman ◽

Xin-geng Wang ◽

Marshall W. Johnson ◽

Kent M. Daane ◽

Ghulam Jilani ◽

...

Keyword(s):

Fruit Fly ◽

Seed Extract ◽

Olive Fruit Fly ◽

Peganum Harmala ◽

Olive Fruit ◽

Larval Parasitoid ◽

Psyttalia Concolor

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Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

Bulletin of Entomological Research ◽

10.1017/s0007485307004865 ◽

2007 ◽

Vol 97 (3) ◽

pp. 233-242 ◽

Cited By ~ 30

Author(s):

K.R. Sime ◽

K.M. Daane ◽

A. Kirk ◽

J.W. Andrews ◽

M.W. Johnson ◽

...

Keyword(s):

Biological Control ◽

Biological Control Agent ◽

Fruit Size ◽

Positive Function ◽

Fruit Fly ◽

Control Programme ◽

Bactrocera Oleae ◽

Adult Longevity ◽

Olive Fruit Fly ◽

Olive Fruit

AbstractThe olive fruit fly, Bactrocera oleae (Rossi), is a newly invasive, significant threat to California's olive industry. As part of a classical biological control programme, Psyttalia ponerophaga (Silvestri) was imported to California from Pakistan and evaluated in quarantine. Biological parameters that would improve rearing and field-release protocols and permit comparisons to other olive fruit fly biological control agents were measured. Potential barriers to the successful establishment of P. ponerophaga, including the geographic origins of parasitoid and pest populations and constraints imposed by fruit size, were also evaluated as part of this investigation. Under insectary conditions, all larval stages except neonates were acceptable hosts. Provided a choice of host ages, the parasitoids' host-searching and oviposition preferences were a positive function of host age, with most offspring reared from hosts attacked as third instars. Immature developmental time was a negative function of tested temperatures, ranging from 25.5 to 12.4 days at 22 and 30°C, respectively. Evaluation of adult longevity, at constant temperatures ranging from 15 to 34°C, showed that P. ponerophaga had a broad tolerance of temperature, living from 3 to 34 days at 34 and 15°C, respectively. Lifetime fecundity was 18.7±2.8 adult offspring per female, with most eggs deposited within 12 days after adult eclosion. Olive size affected parasitoid performance, with lower parasitism levels on hosts feeding in larger olives. The implications of these findings are discussed with respect to field manipulation and selection of parasitoid species for olive fruit fly biological control in California and worldwide.

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