OISC Clean Sweep Pesticide Disposal Program is a great opportunity to legally dispose of unwanted pesticide products at little or no cost. The 2022 Clean Sweep Pesticide Disposal Program sponsored by the Office of the Indiana State Chemist (OISC) offers statewide pesticide collection sites in Wabash, Bartholomew, Daviess, Randolph, Porter and Hendricks counties in August. [Read More…]
Try as we might, it seems that no weed management program controls 100% of the weeds in a field. Inadequate or excessive rainfall can limit the success of preemergence herbicides. Less-than-ideal soil moisture can result in unsatisfactory in-season cultivation. Even when we have effective herbicide options, late emerging weeds often cannot be treated within the[Read More…]
Two-spotted spider mites (TSSM) are one of the most common mite pests occurring throughout the world. They are known to feed on over 300 plant species, including tomatoes, cucumbers, melons, grapes, apples, and a variety of common flower and weed species. They disperse by walking or floating on the wind currents. Early infestations can be[Read More…]
This is my second year coordinating a bucket trap network to monitor squash vine borers. And, for a second year in a row we are witnessing some interesting organisms in the trap. The first of which is the unfortunate capture of pollinators. This is nearly unavoidable because of the color attraction; yellow mimics flowers, but[Read More…]
This is the fourth article in a series that describes the three primary bacterial diseases of tomato: bacterial canker, bacterial speck and bacterial spot. This article is a general summary of management options for these diseases. All three of these diseases may be seed borne and brought into to field situation on transplants. It is[Read More…]
The Pinney Purdue Vegetable Field Day/Twilight Meeting will be held August 9, 2022, 5 to 8 p.m. Central time (6 to 9 p.m. Eastern time) at 11402 S. County Line Road, Wanatah, IN. The evening program will feature plot tours for farmers and for homeowners featuring topics of irrigation, sweet corn, pumpkins, dry beans, equipment,[Read More…]
At Pinney Purdue (PPAC) 2.19 inches of rain fell July 12 through July 26. The potential evapotranspiration (PET) over the period was 2.67 inches. Estimates for water use by the crops are somewhat lower than potential evapotranspiration. For tomatoes, estimated water use was 2.03 inches, and for watermelons, 1.54 inches. Dry periods between heavy rains[Read More…]
At Southwest Purdue Ag Center (SWPAC), more than 10 inches of rain fell since July 7; over 8 inches happened since the evening of July 24. Soil water content on the unirrigated tomato/pepper/eggplant bed (12’’ under plastic mulch) increased from 10% (early July) to about 15% after 3 inches of rain on July 7-9. The[Read More…]
We received more than 8 inches of rain since the evening of July 24 at Southwest Purdue Ag Center. This article discusses a few plant physiological disorders we observed after the heavy rains. We noticed a large percentage of cracked fruit on tomatoes at the stem end (Figure 1). Fruit cracking is a physiological disorder[Read More…]
We discussed insect pests and weed control during renovation in the July episode. Our special guests are Drs. Stephen Meyers, Samantha Willden, and Mr. David Doud. Steve and Sam are researchers from Purdue. Steve is the weed scientist in the Horticulture department; Sam is a postdoc researcher in the entomology department. David is the owner[Read More…]
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