Maize

Maize (Table 30). GAP in Columbia and Ecuador consists in 2 treatments at 0.045 kg ai/ha, with a PHI of 21 days in Ecuador, and in Italy 2 x 0.15-0.16 kg ai/ha with a PHI of 28 days.

Supervised trials were in France (6), Germany (10), Italy (2) and Slovakia (3). In the French trials (1 x 0.11-0.3 kg ai/ha) the residues were 0.16 to 6 mg/kg in the whole plant and <0.01 or <0.05 mg/kg in the grain 62-108 days after application. In Germany, 1 x 0.15 kg ai/ha gave residues of 0.41-1.9 mg/kg in the whole plant at 28 days and <0.01 or <0.05 mg/kg in the grain at 39-114 days after application. The residues found at 63-75 days in the grain in two Slovakian trials were <0.05 mg/kg. Two trials in Italy with 2 x 0.15 kg ai/ha complied with GAP. At 28 days the residues were 3.6 and 3.9 mg/kg in the whole plant and <0.05 mg/kg in the grain.

Table 30. Residues of teflubenzuron in maize from supervised trials.

Country, year	Application			PHI, days	Sample	Residues, mg/kg	Report No.
	kg ai/hl	kg ai/ha	No.
France, 1982	0.051	0.26	1	62	plant	2.0	182.55.33.01
France, 1982	0.051	0.26	1	74	plant	3.2	182.55.33.02
				74	grain	<0.05
France, 1983	0.06	0.3	1	70	plant	6.0	183.57.34.01
				84	gram	<0.05
France, 1984	0.023	0.11	1	66	plant	0.48	184.5734.02a
				108	grain	<0.05
France, 1984	0.05	0.15	1	66	plant	0.51	184.57.34.02b
				108	grain	<0.05
France, 1984	0.01	0.05	1	101	plant	0.16	FR8460501
				101	grain	<0.01
France, 1984	0.02	0.10	1	101	plant	0.53	FR8460501
				101	grain	<0.01
France, 1984	0.03	0.15	1	101	plant	0.54	FR8460501
				101	grain	<0.01
Germany, 1982	0.025	0.15	1	0	plant	3.9	C821372
				14		2.1
				28		1.4
				42		1.1
				56		0.90
				70		<0.05
Germany, 1982	0.025	0.15	1	0	plant	2.1	C82130501
				14		1.6
				28		0.70
				42		1.0
				56		0.60
				71		<0.05
Germany, 1983	0.015	0.15	1	0	plant	2.6	C833072
				14		1.8
				28		1.9
				39		1.9
				39	grain	<0.05
				69		<0.05
Germany, 1983	0.030	0.15	1	0	plant	1.4	C83300301
				14		2.1
				28		1.4
				44		1.4
				49	grain	<0.05
Germany, 1983	0.038	0.15	1	0	plant	3.8	C83300401
				15		3.4
				31		1.8
				45		2.3
Germany, 1983	0.019	0.15	1	0	plant	2.4	C83300501
				14		1.1
				28		0.92
				44		0.96
				63	grain	<0.05
Germany, 1983	0.019	0.15	1	0	plant	1.6	C83300601
				14		1.8
				28		1.9
				39		0.58
				51	grain	<0.05
Germany, 1986	0.038	0.15	1	0	plant	3.2	C862272
				28		1.4
				56		0.57
				111	grain	<0.05
Germany, 1986	0.038	0.15	1	0	plant	4.8	C862205
				25		1.3
				56		0.62
				98	grain	<0.05
Germany, 1987	0.038	0.15	1	0	plant	3.7	C871772
				28		0.41
				56		0.63
				114	grain	<0.01
Italy, 1984	0.025	0.15	2	0	plant	6.0	184/38/07/11
				7		5.0
				14		5.5
				21		3.5
				28		3.6
				28	grain	<0.05
Italy, 1984	0.025	0.15	2	0	plant	5.0	184/38/07/12
				7		3.7
				14		3.0
				21		2.8
				28		3.9
				28	grain	<0.05