Table 5 Expected frequencies of annual generations of Tuta absoluta during 2012 in Qena governorate
Month | Days (n) | t − x | n (t − x) | Rate of generation development | Expected date of annual generations | Cycles no. |
|---|---|---|---|---|---|---|
Feb. 2012 | 29 | 12.29 | 356.41 | 0.45 | 1, Feb. 2012 | |
March | 30.594 | 14.47 | 442.69 | 0.55 | ||
Total | 59.59 | 799.1 | 1 | 30.59, Apr. 2012 | 1 | |
March | 0.41 | 14.47 | 5.93 | 0.01 | ||
April | 30 | 4.97 | 659.1 | 0.82 | ||
May | 5.184 | 25.86 | 134.07 | 0.17 | ||
Total | 35.59 | 799.1 | 1 | 5.18, May 2012 | 2 | |
May | 25.82 | 25.86 | 667.71 | 0.84 | ||
June | 4.594 | 28.6 | 131.39 | 0.16 | ||
Total | 30.414 | 799.1 | 1 | 4.59, Jun. 2012 | 3 | |
June | 25.41 | 28.6 | 726.73 | 0.91 | ||
July | 2.488 | 29.09 | 72.37 | 0.09 | ||
Total | 27.898 | 799.1 | 1 | 2.49, Jul. 2012 | 4 | |
July | 27.47 | 29.09 | 799.1 | 1 | ||
Total | 27.47 | 799.1 | 1 | 29.96, Jul. 2012 | 5 | |
July | 1.04 | 29.09 | 30.0 | 0.04 | ||
August | 27.625 | 27.83 | 768.8 | 0.96 | ||
Total | 28.665 | 799.1 | 1 | 27.63, Aug. 2012 | 6 | |
August | 3.375 | 27.83 | 93.93 | 0.12 | ||
September | 27.332 | 25.8 | 705.17 | 0.88 | ||
Total | 30.707 | 799.1 | 1 | 27.33, Sep. 2012 | 7 | |
September | 2.67 | 25.8 | 68.89 | 0.09 | ||
October | 31 | 23.27 | 721.37 | 0.9 | ||
November | 0.504 | 17.53 | 8.84 | 0.01 | ||
Total | 33.99 | 799.1 | 1 | 0.5, Nov. 2012 | 8 | |
November | 29.5 | 17.53 | 517.14 | 0.65 | ||
December 2012 | 24.433 | 11.54 | 281.96 | 0.35 | ||
Total | 53.933 | 799.1 | 1 | 24.43, Dec. 2012 | 9 | |
December 2012 | 6.57 | 11.54 | 75.82 | 0.095 | ||
January 2013 | 31 | 10.93 | 338.83 | 0.42 | ||
37.57 | 414.65 | 0.52 | ||||
Total no. of cycles | 9.52 | |||||