Influence of host species and age on host preference of Trissolcus semistriatus
Küçük Resim Yok
Tarih
2004
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Trissolcus semistriatus (Hymenoptera: Scelionidae) has a high potential for being an effective biological control agent for the sunn pest, Eurygaster integriceps. This study was conducted to determine the preferences of T. semistriatus in terms of host species and age of various heteropteran host eggs ( E. integriceps, Dolycoris baccarum, Graphosoma lineatum, Eurydema ornatum, Holcostethus vernalis). The results indicated that a small portion of parasitism of E. ornatum eggs was obtained ( 28.5%), although high parasitism rates were found in other host eggs (90.0 - 80.0%). A high percentage of adult emergence was also recorded. When tested for its ability to parasitize host eggs of different ages, T. semistriatus was found to prefer younger hosts: it showed parasitism rates greater than 50% with up to 3 days old E. integriceps and D. baccarum, and with up to 4 days old G. lineatum and H. vernalis. However, the parasitism rates in all the ages of E. ornatum eggs were much lower than for other host species. The developmental times in all host species at different ages was extended with increased host age. It was concluded that G. lineatum and D. baccarum could be used for mass production of egg parasitoids.
Açıklama
Anahtar Kelimeler
Biological Control, Host Preference, Host-Age Preference, Parasitism, Pentatomid, Sunn Pest, Trissolcus Semistriatus, Nezara-Viridula, Scelionidae, Basalis, Eggs, Hym
Kaynak
Biocontrol
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
49
Sayı
5
