| effect of air humidity on the egg viability of predatory mites (acari: phytoseiidae, stigmaeidae) common on rubber trees in brazil. | rubber pest mites, calacarus heveae and tenuipalpus heveae, reach economic damage levels at the end of the rainy season and the beginning of the dry season in brazil. therefore, low humidity adaptation might be an important characteristic for predatory mites to successfully control pest organisms. this study determined the effect of the relative humidity (rh) levels of 30-100% on the hatching of larvae of amblyseius acalyphus, euseius citrifolius, iphiseiodes zuluagai, metaseiulus camelliae, agi ... | 2006 | 16550332 |
| [diversity and seasonal occurrence of mites (acari) in a rubber tree crop (hevea brasiliensis, muell. arg.) in northwestern são paulo, brazil]. | brazilian southeastern region has soil and climate conditions suitable for the growing of rubber trees, and most part of national yield arises from são paulo state. the aims proposed for this work were to determine the diversity, the richness and the seasonal occurrence of mites found in a rubber tree crop in a triennial survey with monthly samplings, as well as to estimate the populational density of the major phytophagous species. this study found 74,407 mites from 26 species belonging to 10 f ... | 2006 | 17061803 |
| mites (acari) of rubber trees (hevea brasiliensis muell. arg., euphorbiaceae) in piracicaba, state of são paulo, brazil. | this study determined the main mite species on rubber trees (clone rrim-600) in piracicaba, southeast of são paulo state, from june 2002 to may 2003 and evaluated the possible relation between them. it was conducted in a plantation of 5 ha on 11 year old trees, 15 m high, surrounded with crops as pearl millet, cotton, bean or corn. samples were taken monthly and consisted of five leaflets, five petioles (only from october 2002 on) and five terminal sections of twigs (10 cm) from 15 rubber trees. ... | 2006 | 17352076 |
| [mites (acari) from rubber trees (hevea brasiliensis muell. arg., euphorbiaceae) and spontaneous euphorbiaceous in rubber trees cultivation]. | quarterly samples were done in 2001 on three rubber tree plantation in the northwest of the state of são paulo. three rubber trees of each locality were sampled. between the rows of rubber tree four species of spontaneous euphorbiaceous were collected: chamaesyce hirta, c. hyssopifolia, euphorbia heterophylla and phyllanthus tenellus. a total of 8.954 mites of 38 species, belonging to 31 genera of 11 families were collected. tydeidae and phytoseiidae had the highest diversity of species, 9 and 7 ... | 2008 | 18813750 |