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UCANR electronic extension journal previously published as "Strawberries and Vegetables"
strawberry fields forever
by Mark Bolda
on May 17, 2014 at 12:32 PM
Interesting piece of work here Surendra. Notable is that in all cases numbers of small nymphs are higher than the other two stages. Clearly, there is a lot of mortality of these stages as they move to later instars and adult. You want to speculate on what might be the cause of that mortality? Seems once that is identified, growers could take advantage of it.
Reply by Surendra Dara
on May 19, 2014 at 11:30 AM
Hi Mark,  
Thanks for your note. Grower applied malathion and novaluron on June 27 in Conventional field 1. That could have been the reason for a drop in the younger nymphs. But you can also see a slight increase in older nymphs during that time indicating that some of the younger ones are maturing into 4th and 5th instar nymphs. Lygus populations showed a general increase regardless of the treatments in this study.
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