EVALUATION OF THIAMETHOXAM 250WG ON THE CONTROL OF <i>LIRIOMYZA HUIDOBRENSIS</i> (BLANCHARD, 1926) AND ITS SELECTIVITY ON PARASITIC HYMENOPTERA IN POTATO CROP (<i>SOLANUM TUBEROSUM</i> L.)

Lara, R.I.R.; Perioto, N.W.; Santos, J.C.C.; Selegatto, A.; Luciano, E.S.

Acessibilidade / Reportar erro

Brasil

Arquivos do Instituto Biológico

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Artigo • Arq. Inst. Biol. 69 (3) • Jul-Sep 2002 • https://doi.org/10.1590/1808-1657v69n3p0572002 copy

EVALUATION OF THIAMETHOXAM 250WG ON THE CONTROL OF LIRIOMYZA HUIDOBRENSIS (BLANCHARD, 1926) AND ITS SELECTIVITY ON PARASITIC HYMENOPTERA IN POTATO CROP (SOLANUM TUBEROSUM L.)

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The efficacy of thiamethoxam 250 WG on Liriomyza huidobrensis and its selectivity on the parasitic hymenoptera fauna were evaluated in potato crop, in São Roque da Fartura, SP. The experiment was a randomized block design with six treatments and four replications. The products and dosages (g a.i./ha) were: thiamethoxam 250 WG (25, 50 and 75); cloridrate 500 (125) and methamidophos 60CS (60). A collection was made for 10 leaves/block to evaluate the total of mined leaves and live larvae. The evaluation of the selectivity at the treatments on parasitic hymenoptera was made by 48 Moericke traps. The results were calculated and tested by the F and Tukey tests (5%) and the percentages of efficiency were calculated according to Abbott. The results showed thiamethoxam to be efficient in the control of L. huidobrensis and selective for the population of parasitic hymenoptera fauna at the least dosage used.

KEY WORDS:
Chemical control; Hymenoptera; Liriomyza huidobrensis; parasitoid; potato; Solanum tuberosum.

produtos	produtos comerciais	formulações	dose/ha
produtos	produtos comerciais	formulações	g.i.a.	p.c.
1. thiamethoxam	Actara	250 WG	25	100g/ha
2. thiamethoxam	Actara	250 WG	50	200g/ha
3. thiamethoxam	Actara	250 WG	75	300g/ha
4. cloridrato	Cartap	500 BR	125	250g/100
5. methamidophos	Tamaron	60 CS	60	100 mL/100
6. testemunha	-	-	-	-

nºproduto	dose p.c.¹ 1 Dosagem em g/ha ou ml/100l H2O;	prévia			3 d.a.p.				6 d.a.p.								15 d.a.p
nºproduto	dose p.c.¹ 1 Dosagem em g/ha ou ml/100l H2O;	LV		LV			E	LV		E	LV	E	LV		E	LV			E
1 Actara 250 WG	100	80	a	70		a	7	2,5 a		90	12,5	ab 76	5	a	89	15		b	75
2 Actara 250 WG	200	75	a	62,5		a	17	0 a		100	0	b 100	10	a	79	12,5		b	79
3 Actara 250 WG	300	82,5	a	65		a	13	0 a		100	0	b 100	5	a	89	7,5		b	87
4 Cartap 500 BR	250	70	a	57,5		a	23	5 a		80	5 b 90		5	a	89	10		b	83
5 Tamaron 60 CS	100	82,5	a	67,5		a	10	0 a		100	10 ab 81		17,5 a		63	22,5 b			62
6 testemunha	-	77,5	a	75		a	-	25 a		-	52,5 a -		47,5 a		-	60 a			-
F tratamentos		0,54 ns			1,09 ns				2,05 ns		5,15^ 1%		3,08^* * 5%;				10,78^ 1%
C.V. (%)		17,15			13,45				120,58		79,77		79,34				35,30

n°produto	dose p.c.¹ 1 Dosagem em g/ha ou ml/100l H2O;* 5%	prévia	3 d.a.p.		6 d.a.p.		9 d.a.p.		12 d.a.p.			15 d.a.p
n°produto	dose p.c.¹ 1 Dosagem em g/ha ou ml/100l H2O;* 5%	np	np	M	np	M	np	M	np	t	M	np	M
1 Actara 250 WG	100	27 a	38 a	-	32	ab25,5	6 ab	40	30	a	25	45	a 29,7
2 Actara250WG	200	21 a	34 a	2,8	20	ab53,4	5 ab	50	35	a	12,5	60	a 6,3
3 Actara250WG	300	14 a	26 a :	25,7	11	b 74,4	16 a	-	24	a	40	52	a 18,7
4 Cartap500 BR	250	17 a	36 a	-	17	ab 60,4	3 b	70	30	a	25	73	a -
5 Tamaron 60 CS	100	24 a	28 a	20	19	ab55,8	9 ab	10	34	a	15	86	a -
6 testemunha	-	31 a	35 a	-	43	a -	10 ab	-	40	a	-	64	a -
F tratamentos		0,89 ns	0,47 ns		3,11^*		2,68 n	ns		0,82 ns			1,32 ns
C.V. (%)		30,26	21,29		25,51		28,82			17,60			21,03

Instituto Biológico Av. Conselheiro Rodrigues Alves, 1252 - Vila Mariana - São Paulo - SP, 04014-002 - São Paulo - SP - Brazil
E-mail: arquivos@biologico.sp.gov.br

Acompanhe os números deste periódico no seu leitor de RSS

[TFN1] ¹
Dosagem em g/ha ou ml/100l H₂O;

[TFN2] ^*
5%;

[TFN3] ^**
1%