See reports for information about these experiments conducted in 2021 at LIHREC (click on publication year to download report; all are also available at Plant Disease Management Reports website):
- McGrath, M. T. and Downing, C. T. 2022. Efficacy of biopesticides for managing powdery mildew in pumpkin, 2021. Plant Disease Management Reports 16:V110.
- McGrath, M. T. and Downing, C. T. 2022. Efficacy of biopesticides applied with conventional fungicides for managing powdery mildew in pumpkin, 2021. Plant Disease Management Reports 16:V111.
![Pumpkin biopesticide experiment overview](https://blogs.cornell.edu/livegpath/files/2022/01/10-Pumpkins-Overview_8-5-21_6331_CROP-EDIT-1024x451.jpg)
Evaluation of Biopesticides for Powdery Mildew in Pumpkin (experiment 1)
A copper fungicide approved for organic production (Kocide 3000-O) was included for comparison.
Application dates were 1=27 Jul, 2=2 Aug, 3=10 Aug, 4=17 Aug, 5=26 Aug, and 6=31 Aug.
The following photos of plots were taken on 10 September, 11 days after the last application for the treatments.
![Biopesticide pumpkin experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt1_Plot8_Control_7932-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt3_Plot17_Howler_7941-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt4_Plot1_Theia_7924-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt5_Plot19_Howler-alt-Theia_7961-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt6_Plot15_MBI-121_7939-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt7_Plot28_Trillium_7952-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt8_Plot6_AVIV_7930-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt9_Plot32_AVIV-alt-Timorex-Act_7948-1024x768.jpg)
![Pumpkin bioassay experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt2_Plot24_Kocide_7956-1024x768.jpg)
Evaluation of Biopesticides and Conventional Fungicides for Powdery Mildew in Pumpkin (experiment 2)
Application dates were 1=27 Jul, 2=3 Aug, 3=10 Aug, 4=17 Aug, 5=26 Aug, 6=31 Aug, and 7=7 Sep.
The following photos of plots were taken on 10 September, 3 days after the last application for the treatments.
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt1_Plot19_Control_8002-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt2_Plot33_Howler-Conv-Rot_7988-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt3_Plot13_Theia-Conv-Rot_7977-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt4_Plot23_Theia-Block-Rot_7998-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt5_Plot16_Sil-Matrix-Block-Rot_7980-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt6_Plot25_Conv-7-day-Rot_7996-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt7_Plot34_Conv-14-day-Rot_7987-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt8_Plot15_Conv-Block-Rotn_7979-1024x768.jpg)
![Pumpkin biopesticide + conventional experiment plot](https://blogs.cornell.edu/livegpath/files/2022/01/Trt9_Plot10_Cevya_7974-1024x768.jpg)