Colorado Potato Beetle Control with NTN 33893

Abstract

Test plots were established at the UI Research and Extension Center, Aberdeen, ID. Potatoes were planted 20 May and irrigation was by fixed sprinkler sets. There were seven chemical treatments and one untreated check replicated four times in a randomized complete block design. Individual plots were 2 rows (36 inch spacing) by 25 ft. Rows were not closed at planting to facilitate hand application of the granular NTN. After insecticide application, the rows were mechanically closed. On 10 Jun foliar applications were made of NTN 240 FS and Furadan 4 F in a 4-5 inch band (20 gal/acre) over the center of the row as a broadcast spray using a CO2 pressurized backpack sprayer. On 9 Jul a second foliar broadcast application (20 gal/acre) of NTN was made on treatment 5 approximately 50 d after planting. On 25 Jun, a single application of Ambush 2 E was applied as a broadcast foliar spray (20 gal/acre) using the previously mentioned system. On a weekly basis, all stages of CPB were counted and percent defoliation estimations were made using whole plant inspections of the center five plants within the two plot rows. Larval stages were separated into small (1-3 instar) and large (4-5 instar). Data were analyzed using ANOVA and significant means separated using Newman-Keuls studentized range test.

ESASeedPARAM: A seed treatment model for threatened and endangered bird species in the United States

“…Acute toxicity data were available for eight species across four orders of birds: Galliformes, Anseriformes, Passeriformes, and Columbiformes (Table 5). Toxicity studies for the Japanese quail (Grau, 1988; Schmuck, 1997), northern bobwhite (Toll, 1990), mallard (Hancock, 1996), house sparrow (Stafford, 1991), grayish baywing (Poliserpi et al, 2021), and eared dove (Addy‐Orduna et al, 2019) followed standard toxicity testing guidelines and included detailed descriptions of study methodology. These studies were considered acceptable for use in this case study, consistent with the USEPA's classification of study quality (US Environmental Protection Agency [USEPA], 2017).…”

“…Two chronic avian toxicity studies are available for imidacloprid. Toll (1991a) exposed male and female mallard ducks ( Anas platyrhynchos ) to imidacloprid in the diet for 21 weeks. There were no treatment‐related effects to survival or behavior.…”

“…No significant effects to males were observed in any treatment. Toll (1991b) exposed male and female northern bobwhite ( Colinus virginianus ) to imidacloprid in the diet for 20 weeks. There were no effects on reproduction.…”