Effects of Temperature on the Development and Reproduction of Ostrinia scapulalis (Lepidoptera: Crambidae)
2022
Ahn, J.J. | Kim, E.Y. | Seo, B.Y. | Jung, J.K.
Ostrinia scapulalis is one of important pests in leguminous crops, especially red bean. In order to understand the biological characteristics of the insect, we investigated the effects of temperature on development of each life stage, adult longevity and fecundity of O. scapulalis at eleven constant temperatures of 7, 10, 13, 16, 19, 22, 25, 28, 31, 34, and 36°C. Eggs and larvae successfully developed next life stage at most temperature subjected except 7, 10 and 13°C. The developmental period of egg, larva and pupa decreased as temperature increased. Lower and higher threshold temperature (TL and TH) were calculated by the Lobry-Rosso-Flandrois (LRF) and SharpeSchoolfield-Ikemoto (SSI) models. The lower developmental threshold (LDT) and thermal constant (K) from egg hatching to adult emergence of O. scapulalis were estimated by linear regression as 13.5°C and 384.5DD, respectively. TL and TH from egg hatching to adult emergence using SSI model were 19.4°C and 39.8°C. Thermal windows, i.e., the range in temperature between the minimum and maximum rate of development, of O. scapulalis was 20.4°C. Adults produced viable eggs at the temperature range between 16°C and 34°C, and showed a maximum number, ca. 416 offsprings, at 25°C. Adult models including aging rate, age-specific survival rate, age-specific cumulative oviposition, and temperature-dependent fecundity were constructed, using the temperature-dependent adult traits. Temperature-dependent development models and adult oviposition models will be useful components to understand the population dynamics of O. scapulalis and will be expected using a basic data for establishing the strategy of integrated pest management in leguminous crops.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Korea Agricultural Science Digital Library