Prediction of annual generations of the tomato leaf miner Tuta absoluta on tomato cultivations in Egypt

Salama, Hussein Sameir; Shehata, Ibrahim El-Sayed; Ebada, Ibrahim Mohamed; Fouda, Mohamed; Ismail, Ismail Abd El-Khaleik

doi:10.1186/s42269-019-0123-9

Bulletin of the National Research Centre

Table 1 Expected frequencies of emergence of Tuta absoluta moths in the Egyptian fields

From: Prediction of annual generations of the tomato leaf miner Tuta absoluta on tomato cultivations in Egypt

Month	Days (n)	t − x	n (t − x)	Rate of emergence, %	Expected date of adult emergence	Cycle no.
Feb. 2012	20.823	8.212	171.00	100.00
Total	20.823		171.00	100%	20.82, Feb. 2012	1
February	8.18	8.212	67.17	39.30
March	9.98	10.40	103.80	60.70
Total	18.16		171.00	100%	9.98, Mar. 2012	2
March	16.44	10.40	171.00	100.00
Total	16.44		171.00	100%	26.42, Mar. 2012	3
March	4.58	10.40	47.60	27.84
April	7.145	17.27	123.42	72.20
Total	11.73		171.00	100%	7.15, Apr. 2012	4
April	9.90	17.27	171.00	100.00
Total	9.90	17.27	171.00	100%	17.05, Apr. 2012	5
April	9.90	17.27	171.00	100.00
Total	9.90	17.27	171.00	100%	26.95, Apr. 2012	6
April	3.06	17.27	52.85	30.91
May	5.80	20.37	118.15	69.10
Total	8.86		171.00	100%	5.8, May 2012	7
May	8.40	20.37	171.00	100.00
Total	8.40	20.37	171.00	100%	14.2, May 2012	8
May	8.40	20.37	171.00	100.00
Total	8.40	20.37	171.00	100%	22.6, May 2012	9
May	8.40	20.37	171.00	100.00
Total	8.40	20.37	171.00	100%	31, May 2012	10
June	7.42	23.04	171.00	100.00
Total	7.42		171.00	100%	7.42, June 2012	11
June	7.42	23.04	171.00	100.00
Total	7.42		171.00	100%	14.84, June 2012	12
June	7.42	23.04	171.00	100.00
Total	7.42		171.00	100%	22.26, June 2012	13
June	7.42	23.04	171.00	100.00
Total	7.42	23.04	171.00	100%	29.68, June 2012	14
June	0.32	23.04	7.37	4.31
July	6.76	24.21	163.66	95.71
Total	7.08		171.00	100%	6.76, July 2012	15
July	7.06	24.21	171.00	100.00
Total	7.06		171.00	100%	13.82, July 2012	16
July	7.06	24.21	171.00	100.00
Total	7.06		171.00	100%	20.88, July 2012	17
July	7.06	24.21	171.00	100.00
Total	7.06		171.00	100%	27.94, July 2012	18
July	3.06	24.21	74.10	43.33
August	4.10	24.17	96.90	56.70
Total	7.07		171.00	100%	4.01, August 2012	19
August	7.07	24.17	171.00	100.00
Total	7.07		171.00	100%	11.08, August 2012	20
August	7.07	24.17	171.00	100.00
Total	7.07		171.00	100%	18.15, August 2012	21
August	7.07	24.17	171.00	100.00
Total	7.07		171.00	100%	25.22, August 2012	22
August	5.78	24.17	139.70	81.70
September	1.44	21.67	31.30	18.30
Total	7.22		171.00	100%	1.44, Sep. 2012	23
September	7.89	21.67	171.00	100.00
Total	7.89		171.00	100%	9.33, Sep. 2012	24
September	7.89	21.67	171.00	100.00
Total	7.89		171.00	100%	17.22, Sep. 2012	25
September	7.89	21.67	171.00	100.00
Total	7.89		171.00	100%	25.11, Sep. 2012	26
September	4.89	21.67	105.97	61.97
October	3.27	19.88	65.03	38.19
Total	8.16		171.00	100%	3.27, Oct. 2012	27
October	8.60	19.88	171.00	100.00
Total	8.60		171.00	100%	11.87, Oct. 2012	28
October	8.60	19.88	171.00	100.00
Total	8.60		171.00	100%	20.47, Oct. 2012	29
October	8.60	19.88	171.00	100.00
Total	8.60		171.00	100%	29.07, Oct. 2012	30
October	1.93	19.88	38.37	22.44
November	8.58	15.45	132.63	77.56
Total	10.51		171.00	100%	8.58, Nov. 2012	31
November	11.09	15.45	171.00	100.00
Total	11.09		171	100%	19.67, Nov. 2012	32
November	10.33	15.45	159.60	93.33
December	1.08	10.56	11.40	6.70
Total	11.41		171.00	100%	1.08, Dec. 2012	33
December	16.19	10.56	171.00	100.00
Total	16.19		171.00	100%	17.27, Dec. 2012	34
December	13.63	10.56	144.99	84.80
Jan. 2013	2.96	8.79	26.01	15.20
Total	16.69		171.00	100%	2.96, Jan. 2013	35
January	19.45	8.79	171.00	100.00
Total	19.45		171.00	100%	22.41, Jan. 2013	36
January	8.59	8.79	75.51	44.16
Total no. of cycles					36.44

Back to article page