Flower diet enhances Adalia bipunctata larval development significantly when prey is limited
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Flower diet enhances Adalia bipunctata larval development significantly when prey is limited. / Holm, Liv Linea; He, Xueqing; Sigsgaard, Lene.
I: Entomologia Experimentalis et Applicata, Bind 169, Nr. 8, 2021, s. 750-757.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Flower diet enhances Adalia bipunctata larval development significantly when prey is limited
AU - Holm, Liv Linea
AU - He, Xueqing
AU - Sigsgaard, Lene
PY - 2021
Y1 - 2021
N2 - Predaceous coccinellids can feed on non-prey food, but the ecological value of this feeding to maintain a coccinellid population is not well understood. Prey density can vary greatly in the field, whereas non-prey food sources such as pollen and nectar are more predictable. In the present study, Adalia bipunctata L. (Coleoptera: Coccinellidae) larval performance on pure and mixed diets of a high-quality non-prey food with varying amounts of prey was investigated. Rosy apple aphid, Dysaphis plantaginea Passerini (Hemiptera: Aphididae), served as prey in the experiment and was given to A. bipunctata larvae either ad libitum as a surplus diet or as a limited diet, the amount of which was selected so that it would limit larval development, according to a pilot study. Flowers of buckwheat, Fagopyrum esculentum L. (Polygonaceae), a high-value floral diet, served as the non-prey food. Newly hatched A. bipunctata larvae were reared on each of five diets: (1) flowers only, (2) limited prey only, (3) limited prey plus flowers, (4) surplus prey only, (5) surplus prey plus flowers. Larval survival, developmental time, and adult dry weight were measured. The addition of floral diet had a significant positive impact on A. bipunctata larval survival and development when prey diet was limited, survival ratio was 6× higher and developmental time was 25% shorter. In conclusion, A. bipunctata immature development can benefit from a floral diet supplemented to a prey diet, which indicates that the use of flowers in cropping systems can help to enhance biocontrol services by A. bipunctata.
AB - Predaceous coccinellids can feed on non-prey food, but the ecological value of this feeding to maintain a coccinellid population is not well understood. Prey density can vary greatly in the field, whereas non-prey food sources such as pollen and nectar are more predictable. In the present study, Adalia bipunctata L. (Coleoptera: Coccinellidae) larval performance on pure and mixed diets of a high-quality non-prey food with varying amounts of prey was investigated. Rosy apple aphid, Dysaphis plantaginea Passerini (Hemiptera: Aphididae), served as prey in the experiment and was given to A. bipunctata larvae either ad libitum as a surplus diet or as a limited diet, the amount of which was selected so that it would limit larval development, according to a pilot study. Flowers of buckwheat, Fagopyrum esculentum L. (Polygonaceae), a high-value floral diet, served as the non-prey food. Newly hatched A. bipunctata larvae were reared on each of five diets: (1) flowers only, (2) limited prey only, (3) limited prey plus flowers, (4) surplus prey only, (5) surplus prey plus flowers. Larval survival, developmental time, and adult dry weight were measured. The addition of floral diet had a significant positive impact on A. bipunctata larval survival and development when prey diet was limited, survival ratio was 6× higher and developmental time was 25% shorter. In conclusion, A. bipunctata immature development can benefit from a floral diet supplemented to a prey diet, which indicates that the use of flowers in cropping systems can help to enhance biocontrol services by A. bipunctata.
KW - Adalia bipunctata
KW - biocontrol service
KW - buckwheat
KW - Coccinellidae
KW - Coleoptera
KW - conservation biological control
KW - ecological value
KW - Fagopyrum escu lentum
KW - larval development
KW - limited prey
KW - non-prey food
KW - rosy apple aphid
U2 - 10.1111/eea.13068
DO - 10.1111/eea.13068
M3 - Journal article
AN - SCOPUS:85106612112
VL - 169
SP - 750
EP - 757
JO - Entomologia Experimentalis et Applicata
JF - Entomologia Experimentalis et Applicata
SN - 0013-8703
IS - 8
ER -
ID: 272120484