Studies on Total Blood Cell Counts of the Southern Armyworm Larva, Prodenia Eridania (Lepidoptera)1

Effect of sweet flag rhizome oil (Acorus calamus) on hemogram and ultrastructure of hemocytes of the tobacco armyworm, Spodoptera litura (Lepidoptera: Noctuidae)

“…Starvation effect has been reported to increase the THC in Prodenia eridania (Rosenberger and Jones, 1960), which may probably be due to fall in HV. NPV treatment has also been reported to initially increase and then decrease THC in Helicoverpa armigera (Kalia et al, 2001).…”

“…For THC and DHC, the larvae and pupae were heat-fixed following the method of Rosenberger and Jones (1960). For THC, 10 m1 aliquot of hemolymph was mixed immediately in an Eppendorf tube with 390 m1 of physiological saline (NaCl 0.9 g, KCl 0.042 g, CaCl 2 0.048 g, NaHCO 3 0.002 g, distilled water 100 ml) containing acetic acid (1%).…”

Hemocyte quantitative changes in Anticarsia gemmatalis (Lepidoptera: Noctuidae) larvae infected by AgMNPV

“…Thus, it suggests that presence of virus in the insect hemolymph after two hours of the infection, caused alterations in the total hemocyte number, keeping high levels during the studied period. According Rosenberger and Jones (1960), the presence of pathogens in the hemocoel of the insects can activate their defense system, causing alterations in the total number of hemocytes. However, there is no consensus in associating the defense response to the decrease or the increase in the total number of these cells.…”

Effect of Plant Based Essential Oil on Immune Response of Silkworm, Antheraea assama Westwood (Lepidoptera: Saturniidae)

“…Rapid haemocyte division to encounter with the nonself oil compounds may enhance THC. Starvation resulting in low haemolymph volume was considered a reason of increasing THC in Prodenia eridenia larva (Rosenberger and Jones, 1960;Sharma et al 2008). The ups and subsequent down regulation of THC level occurring on application of essential oil might suggest an active involvement of the defense system to overcome the toxic action in which the haemocytes in the circulation have been used up for the purpose of defense.…”