Rodeo SL IS A SOIL-APPLIED SYSTEMIC FUNGICIDE FOR CONTROL OF SOIL-ACTING OOMYCETE PATHOGENS SUCH AS PHYTOPHTHORA AND PYTHIUM SPP.
IT MAY ALSO BE MIXED WITH PROTECTANT FUNGICIDES AND USED AS A FOLIAR SPRAY.
Metalaxyl-M, the highly
systemic active ingredient of Rodeo SL, is the active R-enantiomer of metalaxyl
fungicide. It controls soil pathogens such as Pythium damping-off in vegetables and cavity spot of carrots, and Phytophthora spp that cause wilt in
peppers and chillies and root rot in citrus and avocados.
Rodeo SL is applied at
lower active ingredient rates than products containing unresolved metalaxyl to
give similar disease control, because only the active isomer is contained in Rodeo SL. As a consequence, residue
levels in crops and potential exposure to terrestrial and aquatic species and
the environment are very much reduced.
Rodeo SL may also be mixed with protectant fungicides such as mancozeb and copper oxychloride then used as a foliar fungicide to control downy mildew in vines and cucurbits and late blight in potatoes. Although it has curative action, Rodeo SL is far more effective when used before disease has been allowed to establish on the crop. It offers the following features:
Rodeo SL is a
soluble liquid [SL] formulation containing 480 g/litre metalaxyl-M. It mixes
well with a wide range of fungicides and insecticides.
Spectrum of activity
Rodeo SL is
especially effective against soil-borne diseases caused by oomycete pathogens
such as Pythium and Phytophthora spp. on a range of
horticultural and ornamental crops. These are diseases that affect either roots
or the establishment of crops at the seedling stage. Metalaxyl-M may also be
used in seed treatments, usually in mixtures.
Mode of Action
Metalaxyl-M is a
systemic fungicide with protective and curative action. At the cellular level
it interferes in the synthesis of ribosomal RNA affecting protein synthesis in
the target pathogen.
Soil-applied metalaxyl-M is taken up within 30 minutes by plant roots, transported upwards (acropetally) and distributed throughout the leaves. It controls from within the plant, inhibiting fungal growth and reproduction, and protecting new crop growth.