Table 4.

Results of transmission experiments grouped according to calendar weeks and insect stage (SF-summerform; WF-winterform): N° of infected test plants/total N° of tests (percentage of infected plants)

C. pyricola	Site	SF week 18–22	SF week 23–28	WF week 40–48	WF week 7–17	Total
	HH	0/4	–	1/22 (4.5%)	0/16	1/42 (2.4%)
	RUE2	0/4	–	-	1/3 (33.3%)	1/7 (14.3%)
	All sites	0/8	–	1/22 (4.5%)	1/19 (5.3%)	2/49 (4.1%)
C. pyri		SF week 18–22	SF week 23–28	WF week 40–48	WF week 7–17	Total
	RUE1	0/4	0/11	–	–	0/15
	THA	0/1	0/2	3/15 (20%)	2/11 (18.0%)	5/29
	All sites	0/5	0/13	3/15 (20%)	2/11 (18.1%)	5/44 (11.4%)
C. pyrisuga		Emigrants		Remigrants
	HH	–		1/9 (11.1%)
	RUE2	–		0/1
	THA	–		1/11 9.1%)
	Total			2/21 (9.5%)