Lampman R L, Novak R J
Illinois Natural History Survey, Center for Economic Entomology, Champaign 61820, USA.
J Am Mosq Control Assoc. 1996 Mar;12(1):23-32.
The number of egg rafts oviposited by Culex pipiens and Culex restuans in infusion-baited ovitraps varied with the type of infusion substrate, infusion age, method of infusion preparation, and calendar date. In one or more tests, more Culex egg rafts were collected from water infused with Kentucky bluegrass sod, mixed grass clippings, straw, or a commercial rabbit chow than from a water control. Infusions prepared with oak leaves, maple leaves, and sod soil were ineffective as Culex oviposition attractants; however, alfalfa infusions ranged from marginally effective to unattractive. Rabbit chow infusions required one or more reinfusions before becoming active oviposition lures when prepared in unconditioned (unused) ovitraps. Infusions prepared in conditioned ovitraps (those that had previously contained the same type of infusion) had shorter delay periods. Effective oviposition lures for Culex species included continuous infusions, such as sod and sod grass, and those in which the substrate was infused in the water for only a brief period (24-48 h), such as infusions of rabbit chow and mixed grass clippings. The percentage of egg rafts from Cx. restuans was usually greater in sod and grass infusions than in rabbit chow infusions, whereas Cx. pipiens showed a slight preference for rabbit chow infusions over sod and grass infusions. The temporal shift in relative oviposition activity of the 2 Culex species (cross-over) varied from year to year and between sites in one year.
致倦库蚊和环跗库蚊在输注诱饵诱蚊产卵器中产卵的卵筏数量随输注底物类型、输注时长、输注制备方法和日期而变化。在一项或多项测试中，从注入草地早熟禾草皮、混合草屑、稻草或商业兔饲料的水中收集到的致倦库蚊卵筏比从水对照中收集到的更多。用橡树叶、枫叶和草皮土壤制备的输注液作为致倦库蚊产卵引诱剂无效；然而，苜蓿输注液的效果从勉强有效到没有吸引力不等。在未使用过的诱蚊产卵器中制备兔饲料输注液时，需要进行一次或多次重新输注才能成为有效的产卵诱饵。在已使用过的诱蚊产卵器（之前装有相同类型输注液的诱蚊产卵器）中制备的输注液延迟期较短。对致倦库蚊有效的产卵诱饵包括持续输注液，如草皮和草地早熟禾，以及底物仅在水中短暂输注（24 - 48小时）的输注液，如兔饲料和混合草屑的输注液。环跗库蚊的卵筏在草皮和草地输注液中的比例通常高于兔饲料输注液，而致倦库蚊对兔饲料输注液的偏好略高于草皮和草地输注液。这两种库蚊相对产卵活动的时间变化（交叉）每年不同，且在同一年的不同地点也有所不同。
