000			02330nam a2200241 4500
001			UPMIN-00000009134
003			UPMIN
005			20240530104809.0
008			240530b |||||||| |||| 00| 0 eng d
040			_aDLC _cUPMin _dupmin
041			_aeng
090			_aLG993.5 2001 _bB4 A42
100	1		_aAlcala, Ruby Ferda B. _eauthor _926031
245	0	0	_aBiological attributes, parasitization rate and abundance of Trichomma Cnaphalocrosis (U.), a larval and pupal parasitoid of the Asian corn borer / _cRuby Ferda B. Alcala
260			_c2001
300			_a36 leaves
502			_aThesis (BS Biology) -- University of the Philippines Mindanao, 2001
520	3		_aThis study on the biological attributes, parasitization rate and relative abundance of Trichomma cnaphalocrosis (U.) a larval-pupal parasitoid of the Asian corn borer was conducted to describe its external morphology, biological attributes, parasitization rates and its relative abundance. The host insects were collected in Kabacan, Cotabato, Tupi and Tampakan, South Cotabato, Manolo Fortich, Bukidnon and in bago Oshiro, Davao City from june to November 2000. The parasitoids were studied b rearing them separately under laboratory conditions. The observations on the external morphology of T. cnaphalocrosis was conducted by measurements and examination under the stereoscope and photographs. Results showed that the female T. cnaphalocrosis is largr than the male. Its antenna is filiform, mandubulate mouthpart, and thorax is fused with the abdomen. Its forewings have distinct taxonomic character of two-recurrent vein and hindwings are smaller in size. Both are covered with numerous setae. The legs are 5-segmented and the trochanter is 2-segmented which is also a distinct taxonomic character. The abdomen consists of eight segments; male possess claspers and female has ovipositor. High parasitization rate of 31% was observed in Manolo Fortich, Bukidnon and in November. Relative abundance of the T. cnaphalocrosis was also high (0.25/corn borer, 0.16/corn plant and 0.95/sq.m.) in Bago Oshiro, Davao City. Based on these results the T. cnaphalocrosis has the potentials of becoming a biological control agent (BCA) against Asian corn borer.
658			_aUndergraduate Thesis _cBIO200, _2BSB
905			_aFi
905			_aUP
942			_2lcc _cTHESIS
999			_c208 _d208