Inheritance of resistance to carbaryl in red spider mites, Tetranychus kanzawai Kishida (Acarina: Tetranychidae)

Date

5-1981

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Adelina A. Barrion

Abstract

MARALIT, MA. CARMELA C. , University of the Philippines at Los Banos, May, 1981. INHERITANCE OF RESISTANCE TO CARBARYL IN THE REC SPIDER MITES TETRANYCHUS KANZAWAI KISHIDA (ACARINA : TETRANYCHIDAE).

Adviser: Mrs. Adelina A. Barrion.

The possible number of genes and the type of gene action involved in the adaptive potential of the spider mite, Tetranychus kanzawai Kishida, was determined. The study specimens were mass-reared on mungbean (Vigna radiata) (CES 2C-1) plants. Resistant and susceptible strains were screened using the leaf-dip method. Genetic crosses between resistant and susceptible strains resulted to resistant F1's, mortality line divided into a 1:1 ratio of offsprings of the F1 x S backrosses and a 3:1 ratio of F2 progenies to a diagnostic dosage of 0. 39% carbaryl that had killed all the susceptible mites. Resistance to carbaryl was suggested to be due to the operation of a major gene with complete dominance.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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