Pheromone trap monitoring of corn earworm (Helicoverpa zea) and squash vine borer (Melittia cucurbitae) is underway throughout the state. Utilizing trap catches in your area can help inform management decisions and avoid unnecessary pesticide applications. Squash Vine Borer (https://extension.entm.purdue.edu/veg/squash-vine-borer/) For those trappers who are currently reporting, we are catching moths regularly in Allen, Marion, and…Read more about Insect Trapping Updates[Read More]
Insect and Mite Management
Trichoplusia ni, commonly known as the cabbage looper, is a moth in the family Noctuidae. Native to North America, it is a polyphagous pest (feeds on lots of different plants) that can cause significant damage in a variety of crops and potentially lead to plant death. While cabbage looper has a large geographical distribution, it…Read more about Insect Spotlight: Cabbage Looper[Read More]
Description The seedcorn maggot, or Delia platura, is a frequent pest in the Anthomyiidae family that can affect both specialty and agronomic crops, including corn, melons, onions, pumpkins, and many others. The larvae, or maggots, of this species damage the crops. The larvae tend to be white or translucent in color, about 1/4 inch long,…Read more about Insect Spotlight: Seedcorn Maggot[Read More]
Last week, I had the wonderful opportunity to visit a local grower who installed an insectary strip adjacent to their high tunnel last year. They will be hosting a field day in June (Register HERE), so I wanted to take a sneak peek and see how the plants (and insects) were doing. The plants are…Read more about Introducing the Fourlined plant bug (Poecilocapus lineatus)[Read More]
Thrips are soft-bodied insects belonging to the order Thysanoptera. They are tiny, slender, and characterized by their fringed wings (Figure 1). While many thrips species are considered agricultural pests, some are beneficial predators. One important pest species is the western flower thrips (Frankliniella occidentalis; Figure 2), which can cause significant damage to crops. In contrast,…Read more about Insect Spotlight: Thrips[Read More]
I monitor three different insect pests with pheromone traps to help make informed decisions about when to spray insecticides or take other actions for management. Trap data can be found on the Extension Entomology Vegetables Website. The longest running is the corn earworm (Figure 1) trapping network. Participation in this network entails installing a cone-shaped…Read more about Annual Call for Insect Trappers[Read More]
Lygus is a genus of insects within the family Miridae (Order: Hemiptera, piercing-sucking true bugs) that often feed on common horticultural crops. These small insects have rather large eyes, heavily patterned, neutrally colored wings, and long, spindly antennae. The diet of Lygus bugs, as they are colloquially called, is incredibly diverse, ranging from cotton and…Read more about Insect Spotlight: Lygus Bugs[Read More]
Dennis Parr is a seasoned market grower with a wealth of knowledge in plant cultivation. He utilizes various resources to enhance his skills and techniques, including Purdue Extension’s Vegetable Crops Hotline (VCH). Earlier this spring, a VCH article highlighted the cucumber beetle, a pest of cucurbits (link). A few days later, another article alerted growers…Read more about Dennis Parr’s Beetle Battles and Lifelong Learning Journey[Read More]
For those of you with late plantings of sweet corn or field corn that is still in the late stages of silking, do not let your guard down! We are still recording high trap catches throughout the state. Almost every reporting location (except for the Purdue Student Farm) is catching a nightly average of moths…Read more about Corn Earworm (CEW) Trapping Updates[Read More]
Lasioglossum sweat bees are common pollinators in agricultural landscapes. These bees are small black, brown, or iridescent green/blue bees that belong to the family Halictidae. They can often be mistaken for flies due to their small size and nondescript appearance compared to other bees. These bees are historically overlooked as important pollinators for crops compared…Read more about Insect Spotlight: Lasioglossum Sweat Bees[Read More]