Effects of Noncatastrophic Control Technologies that Alter Life History Parameters on Insect Population Growth: A Simulation Study

Throne, James E.

doi:10.1093/ee/18.6.1050

Cited by 22 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A costÐ beneÞt analysis would be required to determine the optimal rate of B. bassiana to use for commercial application. The study also demonstrated that two control technologies that each provides partial control of insect populations when used alone can together provide improved control, as suggested by Throne (1989). Our hypothesis that the fungus would be more efÞcacious on oat cultivars that prolonged larval development was not supported by our data.…”

Section: Discussionmentioning

confidence: 46%

“…Two control strategies that each provide moderate levels of control when used together may provide control of a pest at a level that keeps the population below a treatment threshold (Throne 1989). Host plant resistance is generally considered to be compatible with other management strategies, and these combined control strategies can be key components of an integrated pest management program (Panda andKhush 1995, Throne et al 2000).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Control of Sawtoothed Grain Beetles (Coleoptera: Silvanidae) in Stored Oats by Using an Entomopathogenic Fungus in Conjunction with Seed Resistance

Throne¹,

Lord²

2004

Self Cite

View full text Add to dashboard Cite

We tested the hypothesis that the entomopathogenic fungus Beauveria bassiana would be more efficacious on oat cultivars that prolonged the immature developmental period of sawtoothed grain beetle, Oryzaephilus surinamensis (L.), a storage pest. However, percentage of reduction in progeny production was similar on whole 'Don' and 'Paul' oats treated with fungus, even though immature developmental time was longer on whole 'Don' than on 'Paul' oats. In our initial test at 10 mg of conidia per kilogram of oats, the number of beetle progeny produced was reduced by 38-67% in whole oats, and there was no effect of the fungus on insects developing on cracked oats. Therefore, we conducted two dose-response studies that showed that adding 150 mg of conidia per kilogram to cracked or whole 'Paul' oats resulted in a 70 and 98% reduction, respectively, in number of progeny produced. No further reduction was obtained by adding 200 mg of conidia per kilogram of cracked or whole 'Paul' oats. Presence of the fungus did not affect developmental time in any of our tests. A previous study showed that cleaned oats should limit insect population growth to allow long-term storage of oats without insect damage. However, the current study shows that if the oats are not cleaned, and not cleaning oats is the normal storage practice, then B. bassiana could be used to help control sawtoothed grain beetles.

show abstract

Section: Discussionmentioning

confidence: 46%

mentioning

confidence: 99%

Control of Sawtoothed Grain Beetles (Coleoptera: Silvanidae) in Stored Oats by Using an Entomopathogenic Fungus in Conjunction with Seed Resistance

Throne¹,

Lord²

2004

Self Cite

View full text Add to dashboard Cite

show abstract

“…A time-varying distributed delay was used to simulate variation in development times, apply survivorship, and move insects through stages (Manetsch 1976). The methods for calculating k, the parameter that describes the shape of the curve of individuals leaving a stage over time, were as in Throne (1989). Time step in the model (dt) was 1 ⁄24 d, so k for any stage was not allowed to exceed the minimum mean development time () of that stage times 12 (ϭ/2dt) to ensure stability of the delay (Abkin and Wolf 1976).…”

Section: Methodsmentioning

confidence: 99%

Computer Model for Simulating Population Dynamics of the PredatorLyctocoris campestris(Heteroptera: Anthocoridae) in Stored Shelled Corn

2000

Self Cite

View full text Add to dashboard Cite

“…Throne (1989) used a computer model to investigate influence of changes in developmental time and survivorship on long-term growth of the flat grain beetle, Cryptolestes pusillus (Schönherr). Communicated by C.G.…”

Section: Introductionmentioning

confidence: 99%

Using a population growth model to simulate response of Plodia interpunctella Hübner to temperature and diet

et al. 2012

Self Cite

View full text Add to dashboard Cite

Response to temperature and diet are major factors in the potential population growth of Plodia interpunctella Hübner, a damaging pest of many stored products. A population growth model was used to simulate population development on an optimal wheat-based diet and a sub-optimal diet of raisins at 20-35°C, using different starting values for initial density and life stage. Predicted population development on the two diets increased with temperature and growth patterns were similar regardless of starting population levels at temperatures over 20°C. The predicted population levels on raisins were much less than those predicted for wheat diet, with the same general patterns of increasing populations with temperature at each starting density level or life stage. Results show that the intrinsic population dynamics for P. interpunctella even on a sub-optimal diet and at suboptimal temperatures are such that density can increase rapidly to levels that would cause extensive economic damage. The ability to predict population growth is a valuable tool to aid pest managers in decision making.

show abstract

Effects of Noncatastrophic Control Technologies that Alter Life History Parameters on Insect Population Growth: A Simulation Study

Cited by 22 publications

References 9 publications

Control of Sawtoothed Grain Beetles (Coleoptera: Silvanidae) in Stored Oats by Using an Entomopathogenic Fungus in Conjunction with Seed Resistance

Control of Sawtoothed Grain Beetles (Coleoptera: Silvanidae) in Stored Oats by Using an Entomopathogenic Fungus in Conjunction with Seed Resistance

Computer Model for Simulating Population Dynamics of the PredatorLyctocoris campestris(Heteroptera: Anthocoridae) in Stored Shelled Corn

Using a population growth model to simulate response of Plodia interpunctella Hübner to temperature and diet

Contact Info

Product

Resources

About