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Caterpillar (Lepidoptera: Noctuidae) feeding on pasture grasses in Central Florida.

From: Florida Entomologist  |  Date: 6/1/2007  |  Author: Meagher, Robert L.; Mislevy, Paul; Nagoshi, Rodney N.

ABSTRACT

Stargrasses (Cynodon nlemfuensis Vanderyst var. nlemfuensis) and bermudagrasses (C. dactylon (L.) Persoon) are important warm-season forage grasses, with several cultivars developed for conditions found in central and southern Florida. Major insect pests of these grasses include grass loopers (Mocis spp.) and fall armyworm (Spodoptera frugiperda (J. E. Smith)), which annually may impose economic losses for beef cattle and hay producers. Population studies conducted ...

<0.0001 
  Pupal weight (mg)     17.00    1, 12    0.0014 
  Survival (prop.)      4.60     1, 12    0.0541 
 
TABLE 4. LARVAL WEIGHT (MG) AND DEVELOPMENT TIME TO PUPATION (D) OF 
FALL ARMYWORM RICE STRAIN FED SEVEN DIFFERENT CYNODON SPP. GRASSES. 
THE TOP 4 LINES ARE STARGRASSES AND THE BOTTOM 3 LINES ARE 
BERMUDAGRASSES. MEANS ([+ or -] SE) WITH THE SAME LETTER ARE NOT 
SIGNIFICANTLY DIFFERENT (P><0.0001              P = 0.0005 
 
TABLE 5. LARVAL WEIGHT (MG), DEVELOPMENT TIME TO PUPATION (D), AND 
PUPAL WEIGHT (MG) OF FALL ARMYWORM CORN STRAIN FED 7 DIFFERENT CYNODON 
SPP. GRASSES. THE TOP 4 LINES ARE STARGRASSES AND THE BOTTOM 3 LINES 
ARE BERMUDAGRASSES. MEANS ([+ or -] SE) WITH THE SAME LETTER ARE NOT 
SIGNIFICANTLY DIFFERENT (P>
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