Asian corn borer (Ostrinia furnacalis Guenee) oviposition preferences on maize (Zea mays Linn), king grass (Panicum maximum Jacq.), and cogon grass (Imperata cylindrica (L.)

Yosefus F Da-Lopez,Witjaksono Witjaksono,Y Andi Trisyono

doi:10.5994/jei.17.1.23

Yosefus F Da-Lopez, Witjaksono Witjaksono + Show 1 more

Open Access

https://doi.org/10.5994/jei.17.1.23

Copy DOI

Abstract

Insects’ oviposition behavior on alternate host plants is very helpful to understand the interaction between host plants and insects, the dynamics of insect populations, and the effectiveness of alternate host plants as refugia in managing insect resistance. The oviposition preference of Ostrinia furnacalis on maize (Zea mays L), king grass (Panicum maximum Jacq.), and cogon grass (Imperata cylindrica (L.) was studied through no-choice test, two-choice test, and three-choice test. The oviposition preferences hierarchy of O. furnacalis on maize, king grass, and cogon grass wass sequentially maize > king grass > cogon grass when the tested plants were at 21 DAP (days after planting). However, the hierarchy pattern may change depending on host plants phenology. The 35-day-old king grass was more preferred by O. furnacalis (proportion of eggs = 0.692; OPI = 37.57) than maize (proportion of eggs = 0.301; OPI = -38.780) and cogon grass (proportion of eggs = 0.174; OPI = -65.183) for oviposition. These findings indicated that king grass was a potential alternate host for O. furnacalis to survive and could serve as refugia in IRM strategy. However, it needs further research in the field to ensure the potential of king grass as refugia for O. furnacalis.

Highlights

Common problem in the cultivation of maize is the Asian Corn Borer, Ostrinia furnacalis
No-choice test There was significant influence of the host plants tested to the proportion of the number of egg-masses (F = 27.85, df = 2; p = 0.001) and oviposition preference index (F = 27.85, df = 2; p = 0.001, n = 3)
Since the proportion value is above 0.5 (Fig. 1A) with oviposition preference index of > 0 or positive (Fig. 1B), it indicates that king grass and cogon grass were attractive to O. furnacalis to oviposit even though their preferences were lower than those on maize

Summary

Introduction

Common problem in the cultivation of maize is the Asian Corn Borer, Ostrinia furnacalis This insect can damage the maize up to 98% (Abdullah & Rauf 2011) and yield loss was approximately 18–80% (Ceballo & Rejesus 1983; Nonci et al 1996). This led to the high use of insecticides and increased the risk of insect resistance to insecticides. A strategy for IRM can be implemented by delaying resistance development (Trisyono 2001; Head 2004; Bates et al 2005; Caasi-Lit 2006; Tabashnik et al 2003 & 2010) This strategy can be achieved through high-doses of refugia according to the philosophy of IRM requirements to maintain susceptible alleles in refugia with a minimum economic damage (Bates et al 2005)

Methods

Results

Conclusion