Glycogen in the Boll Weevil with Respect to Diapause, Age, and Diet

Nettles, William C.; Betz, Norman L.

doi:10.1093/aesa/58.5.721

Cited by 22 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Other data indicate that feeding on a high carbohydrate diet also enhances diet consumption (Hilliard, 1983). This observation could explain why boll-fed and diapausing boll weevils accumulate higher concentrations of lipid and carbohydrate than square-fed and nondiapausing boll weevils (Brazzel et al, 1957;Lambremont, 1961;Nettles & Betz, 1965), and reflects the differing metabolite contents between squares and bolls (Lambremont et al, 1964;Nettles & Betz, 1965;Hilliard & Keeley, 1984). It is postulated that the enhancement of feeding behaviour and the subsequent increase in lipid and carbohydrate intake may influence reproductive development relative to migration and diapause onset.…”

Section: Discussionmentioning

confidence: 98%

Interactions between dietary nitrogen and simulated autumn conditions on diet consumption and reproductive development in the boll weevil, Anthonomus grandis

Hilliard

Keeley

1984

Physiological Entomology

View full text Add to dashboard Cite

ABSTRACT. Dietary nitrogen content and short‐day, cool scotophase temperature were investigated for effects on diet consumption and reproductive development in the female boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae). Experimental weevils were maintained from the day of adult eclosion on cottonseed flour diets on a LD10:14 h, 27:15d̀C cycle. Control weevils were maintained under long‐day conditions (LD13:11) at a constant 27d̀C. Diets containing 4% and 1.7% N were labelled with a 14C‐amino acid mixture and fed to individual females for 24 h to permit determinations of diet consumption rate, amino acid absorption, and reproductive allocation of the assimilated amino acids. Females fed the 1.7% N diet under long‐day, 27d̀C laid 50% fewer eggs than females fed the 4% N diet under the same regimen. Egg production was depressed further by the 1.7% N diet when combined with short‐day, and cool scotophase temperatures. These latter conditions delayed, but did not prevent, attainment of a high rate of egg production by females fed the 4% N diet. The short‐day, cool temperature regimen also stimulated diet consumption but reduced the allocation of absorbed 14C amino acids towards oogenesis.

show abstract

Section: Discussionmentioning

confidence: 98%

Interactions between dietary nitrogen and simulated autumn conditions on diet consumption and reproductive development in the boll weevil, Anthonomus grandis

Hilliard

Keeley

1984

Physiological Entomology

View full text Add to dashboard Cite

show abstract

“…However, most reports have focused on the various environmental cues inducing diapause such as photoperiod, temperature, diet, or some combination of these factors ( Earle and Newsom 1964 , Lloyd et al 1967 , Cobb and Bass 1968 , Mangum et al 1968 , Tingle and Lloyd 1969 , Sterling 1972 , Carter and Phillips 1973 , Wagner and Villavaso 1999 ). Most investigators appear to have accepted photoperiod as an important cue inducing diapause in the boll weevil, and physiological studies of diapause have often featured experimental weevils induced into diapause by photoperiod, either alone or in combination with another factor ( Lambremont et al 1964 , Nettles and Betz 1965 , Betz and Lambremont 1967 , Nettles et al 1972 , Mitlin and Wiygul 1976 , Taub-Montemayor et al 1997a , b). Other reports have questioned either the primary role of photoperiod in diapause induction ( Carter and Phillips 1973 , Keeley et al 1977 ) or the larger set of putative determinants of diapause including photoperiod ( Rummel and Summy 1997 ).…”

mentioning

confidence: 99%

Diapause Response of the Boll Weevil (Coleoptera: Curculionidae) to Feeding Period Duration and Cotton Square Size

Spurgeon

Suh

Esquivel

2018

Journal of Insect Science

View full text Add to dashboard Cite

Distribution of the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), in the United States has been greatly reduced by eradication efforts. Still, it remains a key pest of cotton (Gossypium spp., [Malvales: Malvaceae]) in the New World, and has proven difficult to eliminate from Mexico and from southern Texas. In those regions, improved knowledge of boll weevil overwintering ecology may benefit efforts by eradication and management programs. Adult diapause in the boll weevil is well documented, but influences of the feeding period duration between adult eclosion and assessment of diapause remain unstudied. We examined diapause incidence and associated survival for weevils fed for 7, 14, or 21 d after adult eclosion. Diapause incidence of females was less influenced by feeding duration compared with males. For males, highest diapause incidence occurred after 14 d of feeding compared with 7 or 21 d. Host-free survival tended to be higher after 14 d of feeding compared with 7 or 21 d, although many weevils were long-lived (≥80 d) after each feeding period duration. Males exhibited higher survival compared with females, and survival was higher for weevils fed large flower buds (squares) compared with smaller squares. Survival was most influenced by temperature; longevity increased with decreasing temperature except at the lowest temperature (12.8°C). These results suggest an optimal feeding period for induction of diapause and maximized host-free longevity. These findings may permit improved timing of late-season insecticide treatments aimed at reducing overwintering populations, and thereby improve effectiveness of eradication and management programs.

show abstract

Cotton Plant and Insect Constituents That Control Boll Weevil Behavior and Development

Hedin

Thompson

Gueldner

1976

Biochemical Interaction Between Plants and Insects

View full text Add to dashboard Cite

Glycogen in the Boll Weevil with Respect to Diapause, Age, and Diet

Cited by 22 publications

References 0 publications

Interactions between dietary nitrogen and simulated autumn conditions on diet consumption and reproductive development in the boll weevil, Anthonomus grandis

Interactions between dietary nitrogen and simulated autumn conditions on diet consumption and reproductive development in the boll weevil, Anthonomus grandis

Diapause Response of the Boll Weevil (Coleoptera: Curculionidae) to Feeding Period Duration and Cotton Square Size

Cotton Plant and Insect Constituents That Control Boll Weevil Behavior and Development

Contact Info

Product

Resources

About