Cold Storage Effect on the Biological Characteristics of Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) and Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae)

Storage studies of different stages of Anthocoris minki Dohrn (Hemiptera: Anthocoridae) under low temperatures

“…The highest survival rate (88.33%) for a 40 day storage period occurred for the adult stage at 11ºC. Kim et al (2009) reported that when stored at temperatures of 6, 8, 10, and 12°C, 10°C was the most suitable storage temperature for adults of O. laevigatus. These authors also reported a survival rate of 70% at this temperature at the end of 36 days.…”

“…The fact that the mean number of eggs laid per A. minki female following cold storage was lower than those of the control group indicates a negative effect for cold storage in terms of the number of eggs laid. Kim et al (2009) reported that following storage at 10°C for 20 and 40 days, females of O. laevigatus laid 109.2 and 69.2 eggs at 25°C, respectively, while the control group that was not stored cold laid 224.5 eggs. Rudolf et al (1993) reported that following storage at 9°C for 20 and 50 days, females of O. laevigatus laid 145 and 72 eggs, respectively, at 22°C, while the control group laid 190 eggs; females of O. majusculus laid 75 and 34 eggs while the control group laid 122 eggs.…”

“…Bueno et al, (2014) reported that female longevity of O. insidiosus at 25°C following storage at 10°C for 10 and 20 days lasted for 7.8 and 3.8 days, respectively. Kim et al (2009) reported that female longevity for O. laevigatus lasted for 19.8 and 23.7 days at 25°C following storage at 10°C for 20 and 40 days, respectively. In our study, female A. minki stored at low temperatures at various stages displayed shorter longevity as compared to the control group (54.66 days) reared at 25°C without cold storage, suggesting that storage has a negative impact on adult longevity.…”

“…The eggs of Orius sauteri (Poppius) were stored in the laboratory at 7.5°C and 12.5°C by Murai et al (2001). Kim et al (2009) stored O. laevigatus at 10°C and Bueno et al (2014) reported that Orius insidiosus (Say) (Hemiptera: Anthocoridae) can be stored at 8°C for 10 days without a loss of quality. A large body of scientific research is also available on the low temperature storage of other natural enemies (e.g.…”