Water-based pesticidal suspension
A water-based pesticidal suspension comprises (a) flonicamid, (b) a polycarboxylate surfactant, (c) a sulfonate surfactant, and (d) water. The sulfonate surfactant (c) is at least one member selected from the group consisting of an alkyl sulfosuccinate, a lignosulfonate, a C 8-18 alkyl benzene sulfonate and a C 8-18 alkyl diphenyl ether disulfonate. An average particle size of the volume distribution of (a) flonicamid is preferably from 0.5 μm to 10 μm. The polycarboxylate surfactant (b) is preferably a sodium salt of maleic acid/olefin copolymer.
1. A water-based pesticidal suspension consisting of:
(a) flonicamid;
(b) a polycarboxylate surfactant;
(c) a sulfonate surfactant which is at least one member selected from the group consisting of an alkyl sulfosuccinate, a lignosulfonate, a C 8-18 alkyl benzene sulfonate and a C 8-18 alkyl diphenyl ether disulfonate;
(d) water;
(e) optionally at least one agent selected from the group consisting of an antifreezing agent, a thickener, an antifoaming agent, an antiseptic agent, and a pH modifier; and
(f) optionally at least one additive selected from the group consisting of an additional insecticidal compound and a fungicidal compound.
2. The water-based pesticidal suspension according to claim 1 , wherein an average particle size of the volume distribution of (a) flonicamid is from 0.5 μm to 10 μm.
3. The water-based pesticidal suspension according to claim 1 , wherein the polycarboxylate surfactant (b) is a sodium salt of maleic acid/olefin copolymer.
4. The water-based pesticidal suspension according to claim 1 , wherein the sulfonate surfactant (c) is a lignosulfonate.
5. The water-based pesticidal suspension according to claim 1 , wherein the sulfonate surfactant (c) is a lignosulfonate and an alkyl sulfosuccinate.
6. The water-based pesticidal suspension according to claim 1 , wherein the at least one agent (e) is present.
7. The water-based pesticidal suspension according to claim 1 , wherein the at least one additive (f) is present.
8. The water-based pesticidal suspension according to claim 1 , wherein the polycarboxylate surfactant (b) is a sodium salt of maleic acid/olefin copolymer, and the sulfonate surfactant (c) is a lignosulfonate.
9. The water-based pesticidal suspension according to claim 1 , wherein the content of flonicamid (a) in the water-based pesticidal suspension is from 0.1 to 90 wt %.
10. The water-based pesticidal suspension according to claim 1 , wherein the content of flonicamid (a) in the water-based pesticidal suspension is from 1 to 60 wt %.
11. The water-based pesticidal suspension according to claim 1 , wherein the content of flonicamid (a) in the water-based pesticidal suspension is from 5 to 45 wt %.
12. The water-based pesticidal suspension according to claim 1 , wherein the weight ratio of the polycarboxylate surfactant (b) to the sulfonate surfactant (c) is from 1:0.01 to 1:200.
13. The water-based pesticidal suspension according to claim 1 , wherein the weight ratio of the polycarboxylate surfactant (b) to the sulfonate surfactant (c) is from 1:0.01 to 1:40.