Compounds useful as cockroach attractants, the synthesis of the compounds, and methods of controlling cockroach populations with the compounds are disclosed. The compounds are pyrans having the formula: ##STR1## wherein: R.sup.1 is a methyl, ethyl, propyl, or methoxy group and R.sup.2 is a branched alkyl side chain having from 7 to 11 carbons. Preferably, R.sup.2 is a 2,4-dimethyl-substituted alkyl group. Most preferably R.sup.1 is methyl and R.sup.2 is 2,4-dimethylheptanyl. The pyrans can be used as an attractant in cockroach traps comprising, in addition to a pyran according to Formula (I) above, a support and a cockroach restraint. Alternatively, the pyran of the present invention can be combined with a biocontrol agent or an insecticide to form a cockroach control composition.
作为诱捕蟑螂的化合物、这些化合物的合成方法以及使用这些化合物控制蟑螂种群的方法被披露。这些化合物是具有以下公式的
吡喃类化合物:##STR1## 其中:R.sup.1 是甲基、乙基、丙基或甲氧基,R.sup.2 是具有7到11个碳的支链烷基侧链。优选地,R.sup.2 是一个2,4-二甲基取代的烷基团。最优选的是R.sup.1 是甲基,R.sup.2 是2,4-二甲基庚基。这些
吡喃可以用作蟑螂诱捕器的诱饵,除了上述公式(I)的
吡喃之外,还包括一个支架和一个蟑螂限制器。另外,本发明的
吡喃可以与
生物控制剂或
杀虫剂结合,形成蟑螂控制组合物。