Search Results - subject:"Red morph"

The Response of the Red Morph of the Tobacco Aphid, Myzus Persicae Nicotianae, to Insecticides Applied under Laboratory and Field Conditions

Rhoda, Masukwedza; Mazarura, Upenyu; Peter, Chinwada; … - In: Asian Journal of Agriculture and Rural Development 03 (2013) 03

losses especially as it is an important host of numerous viruses and the sudden shift from the green morph to the red morph …

Persistent link: https://www.econbiz.de/10011167698

The Biology of the Red and Green Morphs of the Tobacco Aphid, Myzus Persicae Nicotianae (Blackman) on Flue-Cured Tobacco

Masukwedza, Rhoda; Mazarura, Upenyu; Chinwada, Peter; … - In: Asian Journal of Agriculture and Rural Development 03 (2013) 04

1st nymph, nymphs/day, longevity, fecundity and survival of the red morph were compared to that of the green aphid …. Across all years, days to adulthood were the same for the two forms. The red morph produced more nymphs/day than the green … morph. Longevity was similar but fecundity was 1½ to 2 times higher for the red morph than the green aphid. The red morph …

Persistent link: https://www.econbiz.de/10011200685

The Biology of the Red and Green Morphs of the Tobacco Aphid, Myzus Persicae Nicotianae (Blackman) on Flue-Cured Tobacco

Rhoda, Masukwedza; Upenyu, Mazarura; Peter, Chinwada; … - In: Asian Journal of Agriculture and rural Development 3 (2013) 4, pp. 205-214

nymph, nymphs/day,longevity, fecundity and survival of the red morph werecompared to that of the green aphid. Across all …. Longevitywas similar but fecundity was 1½ to 2 times higher for the redmorph than the green aphid. The red morph survived …

Persistent link: https://www.econbiz.de/10010667450

The Response of the Red Morph of the Tobacco Aphid, Myzus Persicae Nicotianae, to Insecticides Applied under Laboratory and Field Conditions

Rhoda, Masukwedza; Mazarura, Upenyu; Peter, Chinwada; … - In: Asian Journal of Agriculture and rural Development 3 (2013) 3, pp. 141-147

The tobacco aphid, Myzus persicae nicotianae is aneconomically important pest of tobacco, causing extensiveyield losses especially as it is an important host of numerousviruses and the sudden shift from the green morph to the redmorph is of concern as reports of insecticide resistance arecommon...

Persistent link: https://www.econbiz.de/10010667458