Abstract
Primo (cimectacarb), applied as a foliar spray, suppressed shoot growth of four of six bedding plants and all four woody landscape species tested. However, phytotoxic symptoms occurred on the foliage of all bedding plants and two woody species and to flowers of three bedding plants and one woody species. Foliage and flowers of affected plants exhibited a loss of pigmentation that increased at higher rates of Primo, resulting in a bleached appearance.
‘Pinkie’ Madagascar periwinkle (Catharanthus roseus (L.) G. Don ‘Pinkie’), ‘Jazz Bronze’ coleus (Coleus x hybridus Voss. ‘Jazz Bronze’), ‘Goldcrest’ yellow cosmos (Cosmos sulphureus Cav. ‘Goldcrest’), ‘Accent Deep Pink’ impatiens (Impatiens wallerana Hook.f. ‘Accent Deep Pink’), ‘Celebrity Lilac’ petunia (Petunia x hybrida Hort. Vilm.-Andr. ‘Celebrity Lilac’), ‘Bonanza Yellow’ French marigold (Tagetes patula L. ‘ Bonanza Yellow’), ‘Royal Red’ butterfly-bush (Buddleia davidii Franch. ‘Royal Red’), ‘Nellie R. Stevens’ holly (Ilex x ‘Nellie R. Stevens’), privet (Ligustrum japonicum Thunb.), ‘Mrs. G. G. Gerbing’ azalea (Rhododendron x ‘Mrs. G. G. Gerbing’)
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Author notes
2Professor.
3Superintendent, Ornamental Horticulture Substation, Mobile, AL 36689.
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1998
