Ovariole Development in the White-Pine Weevil, Pissodes strobi (Coleoptera: Curculionidae)1

Harman, Dan M.; Kulman, H. M.

doi:10.1093/aesa/60.6.1146

Cited by 7 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Female weevils that emerge during the summer have only partially developed ovaries (Graham 1926;Barnes 1928;Plummer and Pillsbury 1929). For further egg maturation and oviposition to occur, female P. strobi must first undergo overwintering (Harman and Kulman 1967;Wallace and Sullivan 1985). Different biotic and abiotic factors can affect reproduction.…”

Section: Introductionmentioning

confidence: 99%

“…Factors such as temperature and photoperiod were studied to determine what could induce the termination of the white pine weevil reproductive diapause. According to Harman and Kulman (1967), exposure to cold temperatures is required for the termination of dormancy in P. strobi. However, Gara and Wood (1989) reported that a period of cold is not required to obtain mature female P. strobi.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gonadal Development and Egg-Laying Response of Female White Pine Weevils Reared on Artificial and Natural Diets

1998

View full text Add to dashboard Cite

Reproductive processes in female Pissodes strobi (Peck) fed with a 5% ground bark artificial diet following summer emergence were studied. Females exposed to different temperature and photoperiod regimes were dissected every other week and their reproductive organs were observed to evaluate the maturation time according to the treatments. After 12 weeks, half the females were transferred onto lateral branch sections of white pine and the other half onto artificial diet supplemented with 10% ground bark of white pine, and their realized fecundity was determined. During the first 12 weeks, ovary development was detected but very few mature oocytes were found. No significant differences were observed for the maturation times between the different abiotic conditions used, but significant differences were observed in female egg-laying response on natural and artificial diets. Females that completed their sexual maturation at 24 °C and 16L: 8D laid over a 3-week period 14.4 ± 8.8 (mean ± SE) and 2.6 ± 2.6 eggs per female on white pine sections and artificial diet, respectively. Oviposition behaviour was compared with results from an earlier experiment conducted with spring-emerging white pine weevils on natural and artificial substrates. The egg-laying responses on white pine seedlings and on an artificial diet with a concentration of 15% ground white pine bark were 0.892 ± 0.124 and 0.171 ± 0.394 eggs per female per day, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gonadal Development and Egg-Laying Response of Female White Pine Weevils Reared on Artificial and Natural Diets

1998

View full text Add to dashboard Cite

show abstract

“…In fact, we demonstrated that less than 2 weeks after emergence is required for a newly emerged female to develop mature oocytes and 3 weeks to lay eggs. Harman & Kulman (1967) did not observe this phenomenon, as it appears that few females were dissected from the group of newly emerged weevils maintained at 24 °C. As for a few other beetles, there is great variability in P. strobi behaviour associated with reproductive diapause.…”

Section: Discussionmentioning

confidence: 97%

“…According to Harman & Kulman (1967), there is an obligatory reproductive diapause in the newly emerged white pine weevil females. A period of cold temperature is required to break diapause in females and allow them to mature sexually and to lay eggs (Harman & Kulman, 1967). However, according to Gara & Wood (1989) and Trudel et al .…”

Section: Introductionmentioning

confidence: 99%

The effect of cold temperature exposure and long‐day photoperiod on the termination of the reproductive diapause of newly emerged female Pissodes strobi (Coleoptera: Curculionidae)

Trudel

Lavallée

Bauce

et al. 2002

Agri and Forest Entomology

View full text Add to dashboard Cite

1 There is confusion in the literature concerning a possible reproductive diapause in the adult white pine weevil Pissodes strobi. 2 We evaluated the effects of temperature, photoperiod, feeding substrate and mating status on the sexual maturation and oviposition of female white pine weevils. 3 Less than 30% of female P. strobi became sexually mature and laid eggs without experiencing dormancy under a temperature regime of 2 C for 4 weeks. 4 Among the females that experienced a cold temperature treatment after emergence, 80% laid eggs after dormancy when exposed to a long-day (LD 16 : 8 h) photoperiod and 17.6% laid eggs when exposed to a short-day (LD 8 : 16 h) photoperiod. 5 Significantly more eggs were laid by all the females (with and without a cold treatment) when subjected to a long-day photoperiod compared with a shortday photoperiod. 6 A period of cold temperature followed by exposure to a long-day photoperiod with warmer temperatures is required to break reproductive diapause and to obtain a good oviposition response in female P. strobi. 7 This study reveals the existence of much intraspecific variation in the response of the white pine weevil to temperature and photoperiod with respect to the induction and termination of reproductive diapause.

show abstract

“…approximatus (Phillips 1981) in the fall test. Upon emergence, adult weevils were separated according to sex (Harman and Kulman 1966) and stored at 2°C with access to fresh white pine (P. strobi) or red pine (P. approximatus) branches until needed.…”

Section: Methodsmentioning

confidence: 99%

BIOSYSTEMATICS OF PISSODES GERMAR (COLEOPTERA: CURCULIONIDAE): FEEDING PREFERENCE AND BREEDING SITE SPECIFICITY OF P. STROBI AND P. APPROXIMATUS

Phillips

Lanier

1983

Can Entomol

View full text Add to dashboard Cite

Pissodes strobi (Peck) and P. approximatus Hopkins are sibling species that can produce fertile hybrids in the laboratory, but in nature they are isolated by differences in their breeding habits. In a laboratory assay for feeding preference, these species exhibited similar patterns of acceptance of most conifer hosts in the fall, but differed distinctly in their preferences for certain conifers in the spring. Both species had high levels of feeding on white spruce in the fall and spring tests, hut these data apparently do not reflect host preference in nature. In field tests, P. strobi males and females confined on 1-year-old terminal leaders of eastern white pine (their usual breeding sites) produced abundant progeny, whereas P. approximatus pairs confined on leaders produced few progeny. Mixed species pairs were successful in killing and breeding in white pine leaders when the females were P. strobi, but not when the females were P. approximatus. Laboratory-reared hybrids were unsuccessful when forced to breed in leaders. When confined on red pine bolts (the usual breeding sites of P. approximatus), P. strobi and hybrids produced substantially fewer progeny than did P. approximatus. Breeding site separation provides compelling evidence of reproductive isolation between these sympatric species.

show abstract

Ovariole Development in the White-Pine Weevil, Pissodes strobi (Coleoptera: Curculionidae)1

Cited by 7 publications

References 0 publications

Gonadal Development and Egg-Laying Response of Female White Pine Weevils Reared on Artificial and Natural Diets

Gonadal Development and Egg-Laying Response of Female White Pine Weevils Reared on Artificial and Natural Diets

The effect of cold temperature exposure and long‐day photoperiod on the termination of the reproductive diapause of newly emerged female Pissodes strobi (Coleoptera: Curculionidae)

BIOSYSTEMATICS OF PISSODES GERMAR (COLEOPTERA: CURCULIONIDAE): FEEDING PREFERENCE AND BREEDING SITE SPECIFICITY OF P. STROBI AND P. APPROXIMATUS

Contact Info

Product

Resources

About