scholarly journals Bioactivity of Spagneticola trilobata Flower Extract against Fall Army Worm Spodoptera frugiperda J. E. Smith

2020 ◽  
Vol 3 (2) ◽  
pp. 37
Author(s):  
R. Arif Malik Ramadhan ◽  
Efrin Firmansyah
2021 ◽  
Vol 83 (2) ◽  
pp. 219-222
Author(s):  
D Gouthami Bai ◽  
P Seetha Ramtj ◽  
S Dhljrtja ◽  
M Suresh

2020 ◽  
Vol 82 (3) ◽  
pp. 574
Author(s):  
K Ashok ◽  
J S Kennedy ◽  
V Geethalakshmi ◽  
P Jeyakumar ◽  
N Sathiah ◽  
...  

2018 ◽  
Vol 80 (3) ◽  
pp. 544 ◽  
Author(s):  
H. M. Mahadeva Swamy ◽  
R. Asokan ◽  
C. M. Kalleshwaraswamy ◽  
Sharanabasappa ◽  
Y.G. Prasad ◽  
...  

1991 ◽  
Vol 55 (10) ◽  
pp. 2527-2530
Author(s):  
R. F. Severson ◽  
C. E. Rogers ◽  
O. G. Marti ◽  
R. C. Gueldner ◽  
R. F. Arrendale

1988 ◽  
Vol 23 (3) ◽  
pp. 229-233
Author(s):  
J. A. Joyce ◽  
R. J. Ottens ◽  
G. A. Herzog ◽  
M. H. Bass

Laboratory cultures of field-collected larval tobacco budworm, Heliothis virescens (F.), beet army worm, Spodoptera exigua (Hübner), and fall armyworm, S. frugiperda (J. E. Smith) were bioassayed for response to three pyrethroids in combination with piperonyl butoxide (PBO), or MGK-264. The greatest synergistic effects were seen in S. exigua which also displayed the greatest tolerance to pyrethroids without synergists. The highest SR50 (synergist ratio) value for S. exigua was 22.1 with fenvalerate-PBO mixed in a ratio of 1:5, the highest for S. frugiperda was 4.6 with fenvalerate-MGK-264 1:5, and the highest for H. virescens was 1.3 with permethrin-MGK-264 1:5 or with fenvalerate-PBO 1:5.


1989 ◽  
Vol 24 (4) ◽  
pp. 563-571 ◽  
Author(s):  
J. S. Mink ◽  
R. G. Luttrell

Mortality of eggs, first, third, and fifth instars and adults of fall army worm (FAW), Spodoptera frugiperda (J. E. Smith), after exposure to several insecticides on cotton indicated that the FAW is susceptible to most insecticides currently used to control Heliothis spp. Most insecticides tested exhibited ovicidal activity. High mortality of first instar larvae was observed for most treatments, including the biological insecticide, Bacillus thuringiensis (Berliner). More variation in mortality among treatments was observed in third and fifth instars than in first instars. Pyrethroid, carbamate, and organophosphorous insecticides resulted in higher mortality than did B. thuringiensis. Diflubenzuron, an insect growth regulator, was as effective as commonly used insecticides against third and fifth instar larvae when mortality was observed at pupation. Third instar FAW placed on plant tissue from the upper section of cotton plants sprayed in field situations suffered higher mortality than those placed on plant tissue from lower sections in the plant canopy. Inadequate deposition of insecticide in the lower portions of the cotton plant appears to be a limiting factor in control of FAW larvae on cotton.


1989 ◽  
Vol 24 (1) ◽  
pp. 34-39 ◽  
Author(s):  
S. D. Pair ◽  
J. R. Raulston ◽  
A. N. Sparks ◽  
S. R. Sims ◽  
R. K. Sprenkel ◽  
...  

Comparisons of traps for capturing fall army worm, Spodoptera frugiperda, baited with virgin females or synthetic pheromone were conducted at Dade County and Quincy, FL, Brownsville, TX, and Tifton, GA. Significantly higher numbers of fall armyworm males were captured in traps, irrespective of design, that were baited with a four - component lure, Terochem, than in identical traps baited with virgin females or a standard bait containing a 10 : 1 ratio of (Z) - 9 - dodecenol - 1 - ol acetate and (Z) - 9 - tetradecen - 1 - ol acetate. Wire - cone Hartstack traps baited with Terochem captured significantly more males than a plastic funnel - type Unitrap in two of three locations at Tifton, GA, during 1984 - 85, and at Quincy, FL, 1984. At Brownsville, TX, and Dade County, FL, the Unitrap baited with Terochem lures captured ca. as many or more fall armyworm males, respectively, than the Hartstack design. Standard green, yellow, and white Unitraps captured 2× more fall armyworm males than solid green Unitraps, suggesting that the color may influence rates of capture.


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