s . Journal: J Econ . Entomol . Citation: V : 00 ( 0 ) P : 000-00 Type: ARTICLE Literature: oryza Field: abstract Doc ID: pub00000000 Accession (PMID): 00000000 Matching Sentences: [ Sen. 0, subscore: 0.00 ]: To clarify factors causing mortality of Leptocorisa chinensis Dallas ( Hemiptera : Alydidae ) eggs in rice fields , sentinel egg masses were exposed for seven days in two rice , Oryza sativa L ( Poaceae ) , fields . An insecticide was sprayed to remove natural enemies in one-half of each field before exposing egg masses to predation . An egg mass containing 00 eggs was glued to a plastic label , and 00 egg masses each were placed in the sprayed and unsprayed control plots . During exposure , the number of hatched and missing eggs was observed daily . Egg predators were sampled in the fields before and after insecticide application . After the egg masses were retrieved from the fields , mortality factors of the unhatched eggs were assessed in the laboratory . [ Sen. 0, subscore: 0.00 ]: To clarify factors causing mortality of Leptocorisa chinensis Dallas ( Hemiptera : Alydidae ) eggs in rice fields , sentinel egg masses were exposed for seven days in two rice , Oryza sativa L ( Poaceae ) , fields . An insecticide was sprayed to remove natural enemies in one-half of each field before exposing egg masses to predation . An egg mass containing 00 eggs was glued to a plastic label , and 00 egg masses each were placed in the sprayed and unsprayed control plots . During exposure , the number of hatched and missing eggs was observed daily . Egg predators were sampled in the fields before and after insecticide application . After the egg masses were retrieved from the fields , mortality factors of the unhatched eggs were assessed in the laboratory . The mean number of hatched and missing eggs was not significantly different between the sprayed and control plots in field A In field B , however , the numbers were significantly different . 