Cohabitation and Host Species Effects on the Population Growth of Matsucoccus resinosae (Homoptera: Margarodidae) and Pineus boerneri (Homoptera: Adelgidae) on Red Pine

1990 ◽  
Vol 19 (3) ◽  
pp. 672-676 ◽  
Author(s):  
Mark S. Mcclure
Keyword(s):  
Population Growth ◽  
Host Species ◽  
Red Pine ◽  
Species Effects ◽  
Matsucoccus Resinosae

Aerial Dispersal of Red Pine Scale, Matsucoccus resinosae (Homoptera: Margarodidae) 1

1978 ◽  
Vol 7 (4) ◽  
pp. 556-563 ◽  
Author(s):  
George R. Stephens ◽  
Donald E. Aylor
Keyword(s):  
Red Pine ◽  
Aerial Dispersal ◽  
Matsucoccus Resinosae

PHEROMONES OF IPS PINI (COLEOPTERA: SCOLYTIDAE). RESPONSE TO INTERPOPULATIONAL HYBRIDS AND RELATIVE ATTRACTIVENESS OF MALES BORING IN TWO HOST SPECIES

1974 ◽  
Vol 106 (3) ◽  
pp. 247-251 ◽  
Author(s):  
John J. Piston ◽  
Gerald N. Lanier
Keyword(s):  
New York ◽  
Host Species ◽  
Sex Ratios ◽  
Ips Pini ◽  
Red Pine ◽  
White Pine ◽  
Relative Attractiveness ◽  
Backcross Hybrids

AbstractTwo types of field bioassays of the relative attractiveness of various pheromone sources to Ips pini were conducted at Wanakena, N.Y., and at Warrensburg, N.Y. In the first test, the numbers and sex ratios of beetles responding to boring males from New York, Idaho, and their F1 and backcross hybrids graded down in the order of "blood relationship." The intermediate attractiveness of hybrids indicates that hybrids produce pheromones of both parents. In the second test, New York males reared in white pine attracted greater numbers of beetles than those reared in red pine and beetles boring in white pine were more attractive than those boring in red pine.

SEASONAL DISPERSAL AND HOST PREFERENCE BY ADULT SHARPNOSED LEAFHOPPERS (HOMOPTERA: CICADELLIDAE) IN NORTH CAROLINA WOODLANDS1

1988 ◽  
Vol 23 (1) ◽  
pp. 59-74
Author(s):  
Susan P. Whitney ◽  
John R. Meyer
Keyword(s):  
North Carolina ◽  
Population Growth ◽  
Host Species ◽  
Host Preference ◽  
Growth Curves ◽  
Highbush Blueberry ◽  
Migration Patterns ◽  
Two Generations ◽  
Adult Dispersal ◽  
Curve Patterns

Scaphytopius spp. were sweep-sampled weekly from 20 April to 20 November 1984 in creeping blueberry, Vaccinium crassifolium Andrews, near a commercial blueberry field in North Carolina to establish migration patterns. Population growth curves of adults were compared to those of 5th-instar nymphs. Differences in curve patterns indicated adult dispersal from creeping blueberry during the first two generations and return in the 3rd generation. Adults were sampled in wild highbush blueberry, V. corymbosum L.; sheepkill, Kalmia angustifolic (Small); huckleberry, Gaylussacia frondosa (L.) Torrey & Gray; and creeping blueberry to determine inter-host dispersal and host preference. Analysis of variance on numbers of captured males showed significant differences between host species for S. magdalensis (Provancher), but none for S. verecundus (Van Duzee). The former species preferred sheepkill, highbush blueberry and huckleberry, while the latter was uniformly distributed among all four host species. It was recommended that sampling programs for wild S. magdalensis be conducted in huckleberry due to abundance of this host and ease of sampling.

Geographic and Host Species Effects in Eurosta solidaginis (Diptera: Tephritidae) Mortality

1995 ◽  
Vol 24 (3) ◽  
pp. 657-662 ◽  
Author(s):  
Douglas V. Sumerford ◽  
Warren G. Abrahamson
Keyword(s):  
Host Species ◽  
Eurosta Solidaginis ◽  
Species Effects

The Effect of Temperature and Host Species on the Population Growth Potential of the Cowpea Aphid, Aphis Craccivora Koch (Homoptera: Aphididae).

1984 ◽  
Vol 32 (3) ◽  
pp. 345 ◽  
Author(s):  
GN Berg
Keyword(s):  
Population Growth ◽  
Host Plant ◽  
Host Species ◽  
Natural Increase ◽  
Reproductive Period ◽  
Aphis Craccivora ◽  
Growth Potential ◽  
Effect Of Temperature ◽  
Temperature Threshold ◽  
Aphis Craccivora Koch

Age-specific life and fecundity tables were compiled to determine the effect of temperature and host plant on the population growth potential of Aphis craccivora Koch. The intrinsic rate of natural increase (r*m) increased from zero at 5� to a maximum at 30�C, and then declined rapidly to zero at 35�C for aphids reared on all the host species tested. At 25�C aphids on Vicia faba showed a greater population growth potential than those on Capsella bursa-pastoris, followed by those on two Trifolium subterraneum cultivars and finally those on Medicago minima. An increase of temperature resulted in an earlier onset of mortality, irrespective of host-plant species. At higher temperatures the reproductive period began earlier and was shorter than at lower temperatures. The rate of reproduction appeared to be the key determinant in the aphid's population growth rate. The estimated lower temperature threshold of development of the aphid was 8.1�C.

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