Effect of photoperiod on parasitization by Trichogramma principium (Hymenoptera: Trichogrammatidae)
نویسندگان
چکیده
منابع مشابه
Developing Trichogramma (Hymenoptera: Trichogrammatidae) as a pest management tool
The egg parasitoid, Trichogramma (Hymenoptera: Trichogrammatidae), is used extensively around the world as a biological control agent for the control of lepidopterous pests. Wasps are either released to augment an existing population “inoculative release,” or they are released in large numbers to coincide with maximum pest pressure “inundative release.” Field releases however, have had variable...
متن کاملAntibiotics cause parthenogenetic Trichogramma (Hymenoptera/Trichogrammatidae) to revert to sex.
Completely parthenogenetic Trichogramma wasps can be rendered permanently bisexual by treatment with three different antibiotics or high temperatures. The evidence strongly suggests that maternally inherited microorganisms cause parthenogenesis in these wasps. Theories predict female-biased sex ratio in offspring under the influence of maternally inherited symbionts, but extreme sex ratios of 1...
متن کاملAn integrative taxonomic approach to characterize Trichogramma marandobai (Hymenoptera: Trichogrammatidae).
JACI MENDES VIEIRA1, RANYSE B. QUERINO2, FERNANDO L. CÔNSOLI1 & ROBERTO A. ZUCCHI1 1Departamento de Entomologia e Acarologia, ESALQ, Universidade de São Paulo, Caixa Postal 9, 13418-900 Piracicaba, SP, Brazil. E-mail: [email protected]; [email protected]; [email protected] 2Empresa Brasileira de Pesquisa Agropecuária, Embrapa Meio-Norte, 64006-220 Teresina, Piauí, Brazil. E-mail: ranyse.silv...
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Three laboratory experiments were conducted to evaluate the side-effects of four common herbicides used to control weeds associated with local crops on egg of the parasitoid Trichogramma evanescens. These herbicides are Glyphosate 48%SL, Bromoxynil 24%EC, Thiobencarb 50% and Clodinafop-propargyl 15%WP. The biological aspects such% parasitism, % adult emergence, sex ratio, developmental period a...
متن کاملEffect of pesticides on Colpoclypeus florus (Hymenoptera: Eulophidae) and Trichogramma platneri (Hymenoptera: Trichogrammatidae), parasitoids of leafrollers in Washington.
Pesticides were evaluated for their effect on two parasitoid species, Colpoclypeus flouts and Trichogramma platneri, that are potential biological control agents of leafrollers in apple orchards. Organophosphate and carbamate insecticides were highly toxic to both parasitoids in topical applications, but foliar residues of some products were nontoxic after 7 d. At reduced rates, topically appli...
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ژورنال
عنوان ژورنال: European Journal of Entomology
سال: 2007
ISSN: 1210-5759,1802-8829
DOI: 10.14411/eje.2007.089