|
|
|
| Effects of Temperature on Growth and Development of Palomena viridissim (Poda) |
| BI Rui1，CUI Juan2，WEI Lixia1，SHI Shusen1** |
| 1. College of Plant Protection，Jilin Agricultural University，Changchun 130118，China；2. College
of Agronomy，Jilin Agricultural Science and Technology University，Jilin 132101，China |
|
|
|
|
Abstract To explore the effect of temperature on growth and development of Palomena viridissim
(Poda), the effects of five constant temperature treatments at 19, 22, 25, 28 and 31℃ on development
period, development rate, survival rate, development threshold temperature and effective accumu?
lated temperature of Palomena viridissim (Poda) were studied with green bean as the main host feed.
The results showed that at the experimental temperature, the developmental duration of each stage of
Palomena viridissim (Poda) was negatively correlated with temperature, and the developmental dura?
tion shortened with the increase of temperature. By fitting the relationship model between growth rate
and temperature, it is concluded that the two had a significant correlation and accorded with different
relationship models. Among the effects of temperature on survival rate, the survival rate of egg and
nymph reached the maximum at 22 ℃, but it declined with the continuous increase of temperature.
The developmental threshold temperature of egg, nymph, preoviposition and generations were
14.97 ℃ , 7.63 ℃ , 2.68 ℃ and 7.07 ℃ , respectively, and the effective accumulated temperatures
were 45.34, 1 007.77, 672.96 and 1 668.04 d·℃. The results could provide a scientific basis for the
prediction of the occurrence period and integrated management of Palomena viridissim (Poda).
|
|
Received: 05 December 2019
|
|
|
|
|
|
|
|
|
