Hole, U.B., & Salunkhe, G.N. 1999 Relationship between the population build up of Aonidiella aurantii(Maskell) on rose and weather parameters.. Indian Journal of Agricultural Research 33(2): 93-102.

Notes: The incidence of Aonidiella aurantii was observed on thirty rose cultivars during winter and summer seasons of 1991 to 1992 at Pune, Maharashtra, India. The pest build-up started in the last week of January and increased gradually, reaching its peak (65.33 scales/stem) in the first week of March, and declined thereafter. Maximum temperature (Tmax), minimum temperature (Tmin), relative humidity in the morning (RH-1), relative humidity in the afternoon (RH-II) and bright sunshine hours (BSH) in the range of 30.3 to 34.5°C, 9.7 to 11.7°C, 77 to 91%, 17 to 31% and 9.7 to 10.1 h, respectively, prevailed during the 5th to 9th meteorological weeks (MW) and appeared to be favourable for the multiplication of the pest. Increases in scale population were found to be positively and highly significantly, positively and significantly, and positively correlated with maximum temperature, bright sunshine hours and minimum temperature, respectively, during phase I, while maximum temperature and minimum temperature were found to be negatively and highly significantly correlated with an increase in the scale population in phase II.