The Influence of Site on The Distribution of Benzimidazole Fungicides in Elm

Article Figures & Data

Table 1.

Distribution and concentration of fungicides in crowns of elms injected in the root flare or trunk.

Tree pair	Injection site	Circum. (mm)	Number of sites	Quantity Injected (liters)	Time of inject. (minutes)	Coverage^{^a} twigs (%)	Concent, in twigs (Ppm)	Coverage^{^a} leaves (%)	Concent, in leaves (Ppm)
Carbendazim 0.1%
1	root flare	1760	12	26.4	11	9	1.2	59	5.0
	trunk	1770	12	26.6	5	22	1.6	61	3.5
2	root flare	1620	11	24.3	6	37	2.0	80	4.0
	trunk	1475	10	21.1	6	57	1.6	96	3.0
3	root flare	1610	13	24.2	7	18	1.1	49	3.1
	trunk	1310	9	19.7	10	47	1.5	84	3.8
4	root flare	1650	11	24.8	5	44	5.1	63	7.9
	trunk	1600	11	24.0	5	11	1½6	50	2.7
Thiabendazole 1.0%
—	trunk	1660	11	24.9	7	77	—^b	—	—
—	trunk	1650	11	24.6	6	41	—	—	—
—	trunk	1960	13	29.4	12	69	—	—	—