Search

Inthis study, the effects of secondary metabolites on the feeding preference andgrowth of generalist caterpillars, Agelasticaalni L., were investigated. Feeding experiment has been applied with atotal of 11 diet; 6 of which were prepared by adding different concentrationsof gallic acid (1, 3, 5 %) and quinine (0.125, 0.25, 0.5 %) to the controldiet, 3 diet of which prepared by adding different concentrations of gallicacid and quinine. According to the results, the amount of gallic acid consumeddid not affect the food consumption and the amount of pupa lipids. However, theamount of gallic acid consumed positively affects the pupal mass and the pupalcrude protein. In addition, the amount of quinine consumed negatively affectedthe developmental performance of larvae except for the food consumption. As thecount of secondary metabolites in the diet increases, the pupal mass and thepupal crude protein decrease. Overall, during the co-evolution processs, A. alni larvae may be able to adapt togallotannins. However, quinine, an alkaloid, is a feeding deterrence and growthsuppressor for larvae., In this study, the effects of secondary metabolites on the feeding preference and growth of generalist caterpillars, Agelastica alni L., were investigated. Feeding experiment has been applied with a total of 11 diet; 6 of which were prepared by adding different concentrations of gallic acid (1, 3, 5 %) and quinine (0.125, 0.25, 0.5 %) to the control diet, 3 diet of which prepared by adding different concentrations of gallic acid and quinine. According to the results, the amount of gallic acid consumed did not affect the food consumption and the amount of pupa lipids. However, the amount of gallic acid consumed positively affects the pupal mass and the pupal crude protein. In addition, the amount of quinine consumed negatively affected the developmental performance of larvae except for the food consumption. As the count of secondary metabolites in the diet increases, the pupal mass and the pupal crude protein decrease. Overall, during the co-evolution processs, A. alni larvae may be able to adapt to gallotannins. However, quinine, an alkaloid, is a feeding deterrence and growth suppressor for larvae.

In this study, the effect of different carbohydrates on food consumption, growth and development duration of Ephestia kuehniella Zeller (Lepidoptera:Pyralidae) larvae was investigated. 13 diets containing different carbohydrates were prepared. Control diet did not contain carbohydrates. The 8 diet contains 3% concentration of glucose, galactose, maltose, starch, arabinose, mannose, sucrose or fructose. 2 of the diets contains 10% or 30% starch. 2 of the diets contain a mixture of carbohydrates (2 Glucose: 1Fructose; 2 Fructose: 1 Glucose). According to the results, only the increase in food consumption does not indicate that a carbohydrate is a feeding stimulus. The conversion of carbohydrates is also important. Although the dietary consumption of arabinose is high, pupa dry weight, pupa lipid and pupa protein are not high. Conversely, although the consumption of the glucose-containing diet is low, the pupa dry weight and pupa lipid content are high. The glucose-fructose mixture is stimulant for E. kuehniella larvae. G2-F1 diet is the diet with high food consumption and growth performance. In addition, it was determined that as the starch concentration in the diet increased, the amount of consumption increased but the pupa dry weight, which is an indicator of fecundity, decreased. It is important result that the amount of pupa protein does not differ in diets except carbohydrate free diet and G2-F1 diet.