| Autor: |
Studebaker, G. E., Bourland, F., Spinks, C. S. |
| Předmět: |
|
| Zdroj: |
B.R. Wells Rice Research Studies - Arkansas Agricultural Experiment Station, University of Arkansas System; Sep2022, Issue 686, p74-77, 4p |
| Abstrakt: |
Tarnished plant bug (TPB) (Lygus lineolaris) is one of the most damaging pests of cotton (Gossypium hirsutum L.) in Arkansas. Tarnished plant bug has been ranked as the number one pest of cotton, causing the highest crop losses in recent years. The objective of this research was to evaluate TPB populations and yield associated with cotton cultivars that purportedly vary in their resistance to TPB. Performance was evaluated in large plots (16 rows by 100 feet) in which TPB was controlled or not controlled. Four cultivars (PHY 360 W3FE, PHY 350 W3FE, DP 1725 B2XF, and Armor 9608 B3XF) had significantly lower TPB populations throughout the season when compared to a susceptible cultivar (DG 3317 B3XF). The same cultivars reached the treatment threshold of 3 TPB/5 row feet 2 times compared to 4 times for the susceptible cultivar. Two cultivars (PHY 390 W3FE and PHY 350 W3FE) exhibited low yield loss under high TPB populations. One cultivar, Armor 9608 B3XF, showed no significant yield loss under high TPB populations, indicating potential useful resistance to TPB. The use of these data could potentially reduce the number of grower insecticide applications as well as delay resistance to commonly used insecticides and provide growers with additional knowledge of what cotton cultivars work best for their pest management programs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
