Viburnum leaf
beetle home
Back to The Project
Plant ID datasheet:
 .pdf | .doc
Online forms to
report observations (Online forms no longer available.
Logo images by Kent Loeffler, Paul Weston & Craig Cramer
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Your observations will help researchers track the spread of viburnum leaf beetles, and determine which viburnums are most susceptible or resistant to damage.
- Print out a copy of the Plant ID Datasheet. Refer to it as you read through the steps below.
- Familiare yourself with the viburnum and viburnum leaf beetle information on this website. Especially review the timeline so that you know what to look for when.
- Find one or more viburnums to observe. (See The Plant for tips on where to look for viburnums.) Use the viburnum key to make sure it is a viburnum and not a similar-looking species.
- On the datasheet, record the Date and Your Plant ID. Your Plant ID is simply a number or code that will help you keep track of the plants that you monitor -- "001" or "Backyard3," for example.
- Under location, describe where the viburnum is so that you can find it again, if necessary -- "Southeast corner of the border on the south side of Teagle Hall," for example.
- Record the postal code, county and state where the viburnum is located. (Not necessarily where you live.)
- If you know the species of viburnum (or can figure it out using the key), record it on the datasheet. Also check whether you are "almost positive" of your identification or if you are "not sure." If you have no clue what species of viburnum this is, just leave it blank for now, and skip that question when you enter data later on the online forms. Perhaps you can get someone else to help you with the identification later on, then you can go back and add that information.
- On the small chart on the datasheet, write in the date at the top of the first blank column and then check what evidence of viburnum leaf beetles (if any) you find. There may be times when it is appropriate to check more than one box, for example if see both adults and adult damage. Remember: It's also just as important to report "none found" if that's the case.
- If possible, complete the four short optional questions about the site characteristics. Your observations may help us learn what sites are most vulnerable to viburnum leaf beetle attack.
- Complete a new Plant ID Datasheet for each additional viburnum you observe. If you return to the same plant on later dates, simply record your evidence in the additional columns in the chart. (If you run out of room on the chart, print another datasheet.)
- As soon as possible, report your observations using our online forms. (Online forms no longer available.) You'll need to register the first time you enter data. Then you can simply login with your user name and password when you return to enter more data or edit previously reported observations.
- If your plants showed no evidence of viburnum leaf beetles in spring, be sure to report that. You might want to revisit them later to see if adults have moved in in midsummer and fed on leaves or layed eggs on previously uninfested plants.
- If you find evidence of egg-laying sites, consider tracking when they hatch out in spring. (See instructions for Hatching Out.)
© Copyright, Department of Horticulture, Cornell University.
Project coordinator: Lori Brewer, ljb7@cornell.edu
Website design: Craig Cramer cdc25@cornell.edu
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