Donald M. Tuttle

Spider mites of Mexico (Acari: Tetranychidae)

ABSTRACT Twenty-eight genera and 143 species of the plant feeding mites from Mexico are recognized; many of these are found in the United States and Central and South America. A new genus Sonotetranychus is described for Anatetranychus daleae Tuttle, Baker and Abbatiello, and A. albiflorae Tuttle, Baker and Abbatiello. Twenty-six new species are described: Monoceronychus erythrinae, M. littoralis, M. pachucensis, Langella ambrosiae, Eotetranychus guaymas, E. neolewisi, E. zexmlniae, E. euphorbiae, E. deleoni, E. hameliae, E. zempoalensis, E. salviae, E. typhae, Mononychellus chapalensis, M. eysenhardtiae, M. willardiae, Platytetranychus pueblensis, Schizotetranychus prosopis, Oligonychus (Wainsteiniella) pini, W. (W.) juniperi, O. (Homonychus) perseae, O. (Pritchardinychus) tlaxcensis, O. (P.) daleae, O. (P.) quercus, Tetranychus (Tetranychus) eharai and T. (Polynychus) neopolys . Keys to the genera and species are given, and all species are figured.

Spider mites (tetranychidae: acarina) of the state of ceara, brazil

Abstract Seventeen species of spider mites are recorded from the State of Ceara, Brazil. Two of these species are described as new, Oligonychus (Pritchardinychus) flechtmanni and Tetranychus (Tetranychus) bastosi.

A new species of Petrobia (Acari: Tetranychidae) from Mexico collected in quarantine at El Paso, Texas

Abstract A new species of spider mite, Petrobia mexicana (Tetranychidae), collected on Agave sp. and Desilirium sp. from Mexico is described, figured and compared briefly with Petrobia latens (Muller), a common pest species.

A new species of Tetranychus (Acarina: Tetranychidae) intercepted at Quarantine from cacao

Abstract Description of an undescribed species of Tetranychidae, Tetranychus (Tetranychus) nakahari , is given for specimens found attacking Theobroma cacao L. at Washington, D.C. Quarantine.

Salt-Marsh Caterpillar Control on Cotton in Arizona

In 1955 tests at Yuma, mixtures of toxaphene and DDT, formulated both as dusts and sprays, effectively controlled the salt-marsh caterpillar, Estigmene acrea (Drury); these mixtures were slightly more effective than parathion formulations and much more effective than formulations of malathion, Diazinon® ( O,O -diethyl O -(2-isopropyl-4-methyl-6-pyrimidinyl) phosphorothioate) and sodium fluosilicate. A spray formulation containing methyl parathion and toxaphene also gave satisfactory control. Results of 1958 tests near Phoenix indicated an apparent resistance to toxaphene-DDT mixtures although good control was obtained with formulations containing Diban (1 part 1,- 1-bis( p -chlorophenyl)-2-nitropropane and 2 parts 1,1-bis( p chlorophenyl)-2- nitrobutane), Dylox® ( O,O -dimethyl 2,2,2- trichloro-1-hydroxyethylphosphonate), parathion, Sevin® (1- naphthyl- N -methyl carbamate), and a mixture of endrin plus methyl parathion.