Biology of Petrobia Tritici with description of its devlopmental stages (Acari: Tetranychidae) [electronic resource].

By: Contributor(s): Language: English Summary language: Arabic Description: p.2113-2120Other title:
  • بيولوجية النوع بيتروبيا ترتيساى (اكارى - تترانيكيدى) مع وصف لاطواره [Added title page title]
Uniform titles:
  • Egyptian journal of agricultural research, 2007 v. 85 (6) [electronic resource].
Subject(s): Online resources: In: Egyptian Journal of Agricultural Research 2007.v.85(6)Summary: Petrobia tritici Kandeel, EI-Naggar and Mohamed is infests wheat Triticum aestivum L., Sharkeia governorate, Egypt. The life span of the mite is studied for progeny produced from diapause or nondiapause eggs on leaves of wheat. The periods of (female and male) of the diapause or nondiapause eggs are, respectively as follows: 1- Incubation period: (8.75 & 7.75) or (6.80 & 6.25) days, respectively. 2- The larval stage: (5.21 & 4.59) or (5.42 & 2.77) days, respectively. 3- The protonymphal stage: (4.05 & 3.50) or (4.16 & 5.52) days, respectively. 4- The deutonymphal stage: (3.52 & 3.40) or (4.52 & 3.21) days, respectively. 5- The adult longevity: (17.24 & 7.97) or (14.5 & 11.75) days, respectively. . 6- The life span: (38.77 & 27.21) or (35.42 & 26.50) days, respectively. The averaged number of eggs laid by a single female were 77.93 for (diapause) or 13.95 egg for (nondiapause), with daily rate 5.77 or 1.48 eggs, respectively.
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Petrobia tritici Kandeel, EI-Naggar and Mohamed is infests wheat Triticum aestivum L., Sharkeia governorate, Egypt. The life span of the mite is studied for progeny produced from diapause or nondiapause eggs on leaves of wheat. The periods of (female and male) of the diapause or nondiapause eggs are, respectively as follows: 1- Incubation period: (8.75 & 7.75) or (6.80 & 6.25) days, respectively. 2- The larval stage: (5.21 & 4.59) or (5.42 & 2.77) days, respectively. 3- The protonymphal stage: (4.05 & 3.50) or (4.16 & 5.52) days, respectively. 4- The deutonymphal stage: (3.52 & 3.40) or (4.52 & 3.21) days, respectively. 5- The adult longevity: (17.24 & 7.97) or (14.5 & 11.75) days, respectively. . 6- The life span: (38.77 & 27.21) or (35.42 & 26.50) days, respectively. The averaged number of eggs laid by a single female were 77.93 for (diapause) or 13.95 egg for (nondiapause), with daily rate 5.77 or 1.48 eggs, respectively.

Summary in Arabic.

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