Japanese Beetle Emergence Begins – Turfgrass Science at Purdue University

Japanese Beetle Emergence Begins

We captured the first Japanese beetle adults of the year last week in our traps on the Purdue Campus. These traps are located in an area where emergence tends to take place much earlier than at most locations, so don’t expect to see any significant wide-scale emergence for another 2-3 weeks. We monitor this particular site in order to be able to provide turf and landscape managers with an early heads-up so they can prepare as necessary. For turfgrass managers concerned about controlling the larvae (white grubs) of this insect, the chart below provides guidance on product selection and timing in relation to expected efficacy.
 
 
 
Doug Richmond
Turfgrass Entomologist
 
 
 

 

 

Share This Article
Disclaimer: Reference to products is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in these articles assumes full responsibility for their use in accordance with current directions of the manufacturer.
Turfgrass Science at Purdue University - Horticulture & Landscape Architecture, 625 Agriculture Mall, West Lafayette, IN 47907

© 2020 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Turfgrass Science at Purdue University

If you have trouble accessing this page because of a disability, please contact Turfgrass Science at Purdue University at kkalbaug@purdue.edu.