B 



2003 



^ PANEL: F? = 0.32; P-= 0.001 

 'n, PYRAMID: Ff -0,07;P= 0.15 



8 10 12 14 16 18 20 

 MEAN AIR TEMPERATURE (°Q 



2004 



8 10 12 14 16 18 20 

 MEAN AIR TEMPERATURE CQ 



2004 



>■ 5 



< 



e 



o 



a 4 



% 2 



e 



u 



S 







V^PANEL: F?- 0.56: P< 0.001 □ 



"-Q. PYRAMID: Ff = 0.52; P <: 0.001 



S 4 



< 



U 3 



12 



^ PANEL: f* = 0.01 ; P = 0.62 

 ■•D. PYRAMID: F* = 0.04; P= J2 



a°, 



\s^-. 



"^-^^ 



a 10 12 14 16 18 20 22 24 26 28 

 MEAN AIR TEMPERATURE ("Q 



8 10 12 14 16 18 20 22 24 

 MEAN AIR TEMPERATURE ("Q 



Figure 2. Continued. 



phenology, and weather. Correlation analyses 

 revealed a strong positive influence of mean daily air 

 temperature on PC captures by panel traps before petal 

 fall for each of the five trapping years. Captures by 

 pyramid traps were less influenced by temperature than 

 panel traps (Figure 2A). hi contrast, the relationship 

 between mean air temperature and captures by either 

 panel or pyramid traps after petal fall was rather weak, 

 except in 2003 for panel traps (Figure 2B). The 

 proclivity of adults to either fly or crawl was 

 independent of sex. 



Thermal constants for different stages of PC 



immigration. Table 2 shows the thermal constants 

 (base 43°F) for different stages of PC immigration. On 

 average, PC immigration started when 235 DD had 

 accumulated since January 1. The number of DD 

 accumulated since January 1 to attain 50% and 80% 

 cumulative captures was 480 and 775, respectively. 



Relative predictability of PC immigration: Tree 

 phenology versus thermal constants. Using CV's, we 

 detemiined that initiation of PC immigration was better 

 explained by accumulation of Degree Days (CV= 13.2) 

 than by tree phenology (CV= 42.2). 



Female sexual maturity stage and mating status. 



Fruit Notes, Volume 69, Fall, 2004 



