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Commercial Horticulture > Comm Hort Blog > Posts > Insect Pheromone trap catches across Alabama (peanut/vegetable crops) – June 14, 2015

(Numbers are color coded to show relative activity of moths using total trap catches for various locations. Red means very high activity and green mean low activity for the location.)

 Beet armyworm
 BAW map 6-14-15.jpg

Beet armyworms (BAW): Has 5-6 generations in the south. Host plants include bean, corn, cowpea, eggplant, pea, pepper, potato, tomato, and many other vegetables. Field crops may include corn, cotton, peanut, sorghum, and soybean. BAW moth numbers have been consistently high for the past two weeks at several locations. BAW moth numbers have far exceeded Fall armyworm moth numbers. Most BAW activity has been detected in South and Central Alabama, so producers should be on high alert and scout for BAW caterpillars.  
 
Fall armyworm
FAW map 6-14-15.jpg
Fall armyworm (FAW): Has 4 generations in the south – migrates upward from FL and populations get worse mid- to-late-season on specialty or row crops. Prefers to feed on grasses then move to various row crops and vegetables that include fruiting crops. It appears that at present fall armyworms are not aggressively migrating into row crops or vegetable fields but hot dry weather can make populations worse. Hay and livestock producers are encouraged to visit http://www.aces.edu/anr/forages/Management/documents/FallArmywormMap.php (map prepared by Dr. Kathy Flanders).  
 
Soybean looper
 SL map 6-14-15.jpg
Soybean looper (SL): Infestations happen from migrating populations or moths may be moved by weather systems. SL attack soybean and peanuts among other row crops. Also attacks many summer vegetable crops during late season. Moth numbers/activity appears low in several observed locations.
 
Corn earworm
 CEW map 6-14-15.jpg

Corn earworm (CEW): Has about 5-7 generations in the south. Corn, tomato and cotton appear to be favorite crops among numerous others row and horticultural plants that may also be attacked. Moth numbers have not increased during the past two weeks locations monitored but that doesn’t mean moths are not present. Peak activity usually happens in mid-summer with several overlapping generations present. Tomatoes are a favored host for egg laying if corn is unavailable – so vegetable producers should watch out!
 
Tobacco budworm
 TBW map 6-14-15.jpg
Tobacco budworm (TBW): Has 4-5 generations in the south. Host crops cotton, soybean, and peanuts among others. May attack vegetables as pea, pepper, pigeon pea, squash, and tomato. We have detected a very low population of TBW moths in Lee and Macon Counties but moths may be active in many southern AL counties. These insects are difficult to kill with synthetic pyrethroids – so look before you spray!
 
Lesser cornstalk borer
LCB map 6-14-15.jpg
Lesser cornstalk borer (LCB): 3-4 generations may occur. Prefers various legume (including peanuts and soybeans) and grassy crops. In peanuts, LCB damage can cause rapid yield loss along with severe crop contamination. The moths have been detected in high numbers in row crops (peanuts/soybeans) which is evident from the reported numbers. Crop damage from caterpillars usually follows prolonged hot dry weather.
 
Squash vine borer
 SVB map 6-14-15.jpg

Squash vine borer (SVB): Has one generation per year. Moths are day-flying and they can migrate long distances during early spring to find host plants. Vines must be protected using insecticides or with insect netting ahead of the insect to reduce egg laying. Moth activity is high in many of the monitoring locations and squash producers should be on high alert. Moths look like wasps and lay eggs on the stem close to the soil. Caterpillars cannot be killed once they burrow inside the plant stalk, so use prevention tactics.
 
For IPM questions, please call Ayanava Majumdar, 251-331-8416, bugdoctor@auburn.edu or use the resources below.
Facebook pages: Alabama Vegetable IPM or Alabama Peanut IPM 
Alabama IPM Communicator newsletter: www.aces.edu/ipmcommunicator

 


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