tg_efficacy_pt18pt19_superseded_en

Transitional Guidance on PT18 + PT19
September 2016
59
o mortality after 24 hour should be >90%.
Products intended for use as general surface treatment, space treatment or vaporisers in
stables and waste dumps:
required results in laboratory tests:
o the level of knockdown efficacy should be ≥80%;
o mortality after 24 hour should be ≥90%;
required results in field trials:
o reduction in the amount of flies according to the claim (or compared to the
control situation).
Products intended for use as larvicides:
required results in laboratory tests:
o >90% larva mortality;
o showing decrease in number of emerging flies.
Products intended for use as skin repellent:
required results in tests:
o showing repellence, preferably >90%.
Products intended for use as spatial repellent:
required results in tests:
o showing repellence, preferably >80%.
Products intended for use as repellent on horses (recreational and/or sport horses only):
o
o
a laboratory test demonstrating repellence;
a simulated use/ field test demonstrating sufficient repellence against the
specific target fly species on target animals.
Deviations from these norms is possible but should be justified in the application.
14. Mosquitoes
14.1 Introduction
Mosquitoes, including species in the Culex, Aedes, and Anopheles Genera are common
pests in parts of the EU. As well as their annoying behaviour and itching bites,
mosquitoes are well-known for transmitting diseases such as Malaria (Anopheles spp.),
yellow fever, Dengue (Aedes spp.), West Nile (e.g. Culex spp.), blue tongue virus in
animals, and various encephalitis. Although none of these diseases are endemic in
Europe, occasional outbreaks occur and European travellers might encounter them,
either in European tropical overseas regions or in the rest of the world. Biocides against
mosquitoes can only claim to kill or repel the mosquitoes, not to prevent the diseases.
14.1.1 Biology
Like all Diptera, mosquitoes also go through four stages of development. The egg, larval
and pupal stages take place in still aquatic environments such as floodplains, drainage
ditches, natural and artificial water containers. Depending on the species, female
mosquitoes will lay eggs directly in these aquatic environments or adjacent to locations
in mud which typically have fresh water or tidal flooding events. Depending on the