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| DOI: | 10.1093/jee/89.2.447 |
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| Web URL(s): | https://academic.oup.com/jee/article/89/2/447/2216434/Eclosion-Time-and-Spatial-Distribution-of
Last checked: 02/28/2017
Access conditions: Item is within a limited-access website
Notes: Guide page |
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| Publication Type:
| Refereed |
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| Author(s): | Richmond, Douglas S.;
Shetlar, David J. |
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| Author Affiliation: | Department of Entomology, The Ohio State University, Columbus, OH |
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| Title: | Eclosion time and spatial distribution of overwintering spruce spider mite (Acari: Tetranychidae) eggs on Colorado spruce |
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| Section: | Forest entomology
Other records with the "Forest entomology" Section
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| Source: | Journal of Economic Entomology. Vol. 89, No. 2, April 1996, p. 447-452. |
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| Publishing Information: | Lanham, Maryland: Entomological Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Climatic factors; Insect behavior; Insect distribution; Oligonychus; Reproduction; Trees
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| Abstract/Contents: | "No ovipositional preference was shown by spruce spider mites, Oligonychus ullunguis (Jacobi), with respect to compass direction or the upper, middle, or lower strata of Colorado spruce, Picea pungens (Engelmann). However, along the axes of host plant limbs, eggs were deposited significantly farther from the center of the plant on tile south and east sides than on the north and west sides. Eggs were deposited significantly farther from the center of the host plant in tile lower stratum than in the upper and middle strata. Degree day accumulations, using 2 lower developmental thresholds, were used to describe eclosion of diapausing eggs. Mean degree-day accumulations (±SD) from 1 March to eclosion were 143.3 ± 30.1 base 7.1°C and 170.1 ± 29.6 base 5.6°C. These means coincided well (≅5 d) with observed hatching times in the field in 1993 and 1994. A In-probit transformation of the data and regression analysis revealed no significant difference between the accuracy of either model relative to field observations. However, the model using tile lower of the 2 developmental thresholds (5.6°C) provided a better fit with data gathered in the lab (r2 = 0.94, MSE = 0.114), suggesting that 5.6°C is a better base temperature for predicting emergences based on degree-days." |
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| Language: | English |
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| References: | 24 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richmond, D. S., and D. J. Shetlar. 1996. Eclosion time and spatial distribution of overwintering spruce spider mite (Acari: Tetranychidae) eggs on Colorado spruce. J. Econ. Entomol. 89(2):p. 447-452. |
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| DOI: 10.1093/jee/89.2.447 |
| Web URL(s):
https://academic.oup.com/jee/article/89/2/447/2216434/Eclosion-Time-and-Spatial-Distribution-of
Last checked: 02/28/2017
Access conditions: Item is within a limited-access website
Notes: Guide page |
| 
MSU catalog number: b2222995a |
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