Open AccessBiological Parameters of the Bark Beetle, Xylosandrus crassiusculus (Motschulsky) Under Controlled Laboratory Conditions
Author(s) -
Khalid Hussain Quresh,
Abdul Waheed Solang,
Abdul Ghani Lanjar,
Jan Muhammad Marri,
Sajjad Ali Khuhro,
Aslam Bukero
Publication year - 2021
Publication title -
maǧallaẗ wiqāyaẗ al-nabāt al-arabiyyaẗ
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.149
H-Index - 2
eISSN - 2412-5407
pISSN - 0255-982X
DOI - 10.22268/ajpp-039.2.146151
Subject(s) - curculionidae , biology , fecundity , larva , bark beetle , pupa , bark (sound) , zoology , horticulture , incubation period , botany , insect , incubation , ecology , population , medicine , biochemistry , environmental health
Biological parameters of the bark beetle, Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae: Scolytinae) was investigated under different temperature regimes (27, 29, 31 and 35ºC). The females reared at 29°C, lived 30.93±2.36 days for oviposition. The female laid a maximum of 6.71±1.89 eggs per day and a maximum of 6.99±1.33 batches per female. Each batch had an average of 13.78±2.01 eggs. The mean total fecundity recorded was 67.8±4.25 eggs, with a shortest egg incubation period. At 29°C, the duration of the larval stage was 20.17±2.89 days, the pupal stage 5.03±1.11 days, and the life span of the adult insect was 29.44±3.19 days. Significant differences (P<0.05) were noted when the duration of the different life stages under 29 and 35ºC were compared, with longer duration at 29°C. Insects reared at 35°C had narrower bodies and smaller sizes. Furthermore, the developmental stages period, including the ovipositional period (days) were negatively correlated with temperature. Keywords: Xylosandrus crassiusculus, bark beetle, biological parameters, temperature regimes.