SEASONALITY AND SAMPLING OF THE MANGO SHOOT BORER, Chlumetia transversa Walker p (LEPIDOPTERA : NOCTUIDAE)

ABRAHAM VERGHESE, K. SUDHA DEVI

Abstract


Field observation on C. transversa showed that the peak percent infestation was  in September, 1996 (22.26%) and in November, 1997 (47.17%). Correlation analysis showed that  there was a very significant correlation between percentage infestation of lower and upper canopies.  Both lower and upper canopies were again significantly correlated to total infestation. Alinear and  a polynomial models were worked to estimate total infestation based on lower canopy sampling.  Athird order polynomial model was worked out to predict infestation, using mean RH as a variable,  with areliability of 53%.


Keywords


Chlumetia tranrversa; mango; sampling; seasonality

Full Text:

PDF

Refbacks

  • There are currently no refbacks.


=====================================================================

PMHE, Pest Management in Horticultural Ecosystem. 2013 © Association for Advancement of Pest Management in Horticultural Ecosystems, all right reserved.
Use of this website signifies your agreement to the Terms of Use.

Concept Conceived By: Chief Editor and Online Team,AAPMHE
Executed By: Thippeswamy S, Asst. Chief Technical Officer
ICAR-IIHR,Bengaluru-89

Proudly powered by OJS