Economic threshold

Agriculture

Ecology

Biology

Hectare

PEST analysis

Root crops

Crop loss

Leucinodes orbonalis

Crop

Toxicology

Agronomy

Shoot

Horticulture

Pest Management in Horticultural Ecosystems

In India, potato (Salanum tuberasum L.) is  used as Vegetable rather than a staple food. In  Karnataka, during 1998-99 potato was grown in  an area of3l,462 lakh hectares with a production  of 4,47,307 million tonnes (Patil, 2000). There  are many production constraints in potato  cultivation of which insect pests are a major threat.  In recent years, the shoot borer, Lencinodes  orbonalis has become a serious pest around  Dharwad (North Karnataka, South India).  However, no work has been carried out on the pest  in potato with reference to the extent of loss  caused. The present study was, therefore,  undertaken to estimate the loss caused by the pest  and to establish the economic injury threshold  level (EIL) of L. orbonnlis.  The loss on potato due to the shoot borer was  estimated at Main Research Station, Dharwad  during 2000-200l by adopting three methods  namely: i. Under protected and unprotected  conditions. ii. Release of different densities of  larvae on potato under field conditions and m.

CROP LOSS ESTIMATION CAUSED BY Leucinodes orbonalis Guenee IN POTATO