By Michael K. Rust, John M. Owens, Donald A. Reierson
The German cockroach is taken into account to be the main resilient and ecologically very important insect pest present in houses, residences, and advertisement amenities within the usa and internationally. This booklet expertly offers up to date information regarding the habit and biology of this pest--including taxonomy, distribution, morphology, and genetics--as it will possibly relate to powerful applied sciences for its regulate. development on details awarded piecemeal in books and articles showing over greater than 50 years, the ebook positive factors over 1,200 references with regards to the German cockroach, such a lot released in the final yr. With contributions from the pinnacle specialists, the booklet may be helpful to scholars and practitioners of entomology and pest management.
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Additional info for Understanding and Controlling the German Cockroach
These data give an indication of the potential hatch of egg cases dropped prematurely due to insecticide treatment, although, in this situation, hatch is 24 Ross and Mullins also influenced by whether or not the egg case drops on an insecticide-treated surface (Harmon and Ross 1988). 4°F), the "temperature preferendum" for this species (Gunn 1935). 4°F), the more rapid the development. Willis et al (1958) reported an "incubation period" of only 17 days at 30°C (86°F). 2-77°) (Cochran 1983, Ogata 1976, Roth and Stay 1962, Tanaka 1973).
6). Fossae of tergal gland circular to oval with their posterior margins curving anteriorly. Posterior margins of fossae may or may not reach the anterior margins. Narrower forewings2 germanica Median longitudinal groove on abdominal tergite 8 absent or only slightly indicated (Fig. 6). Fossae of tergal gland subrectangular and extend laterally. Posterior margins of fossae do not curve anteriorly. Wider forewings2 asahinai Modified from Roth (1985, 1986) and Mizukubo (1981). See Ross (1992b) for discussion of wing types of these species and their hybrids.
5). In a more definitive study, based on eight laboratory populations, population growth was again exponential (Reid 1989). Two procedures were used to calculate the intrinsic rate of increase (r) of a cockroach population. 0229. Data on growth and composition of the laboratory population agreed well with the data from the shipboard experiment (Ross et al. 1984). The growth rate of the laboratory population was considerably less than estimated from a model (Grothaus et al. 1981) or conditions of maximum fecundity (Archbold et al.