Influence of Lime and Nitrogenous Fertilizers on the Population of Greenbugs Infesting Oats1

Influence of host plant condition on population increase ofTetranychus telarius(Linnaeus) (Acarina: Tetranychidae)

“…Taylor, Apple, and Berger (1952), working with the potato aphid, Aphis fabae, and the pea aphid, Macrosiphum pisi, and Barker and Tauber (1951a), working with Myzus persicae, represent such ex-amples. On the other hand, negative responses to increased fertilization have been reported by Daniels (1957), Arant and Jones (1951), Haseman (1946) and Smith (1960).…”

Effect of cultural measures on the population density of the fruit tree red spider mite,Metatetranychus ulmi Koch (Acari, Tetranychidae)

“…The connection between population expansion and the quality and quantity of the available food has been studied extensively in certain phytophagous insects, and especially in aphids (ARANT & JONES, 1951 ;AUCLAIR, 1953;MALTAIS, 1950;AUCLAIR et al, 1957;BARKER & TAUBER, 1951 ;EVANS, 1938;FRAENKEL, 1953;FRIEND, 1958;GRISON, 1958;HASEMANN, 1946;HOFFMANN, 1916 ;KENNEDY, 1958 ;MALTAIS, 1951 ;MEYAARD, 1956;MITTLER, 1957MITTLER, , 1958NUORTEVA, 1952;RODRmUEZ, 1960;VtLK & BODE, 1954).…”

The Reproductive Capacity of the Apple Leaf-Curling Aphids (Myzus malisuctus MATSUMURA) Reared on Gibberellin-Treated Apple Trees

“…In connection with the above conception, especially with the second method correlations between mite and aphid reproductions and mineral composition of soil and plant tissue have hitherto been studied by many workers (ARANT and JONES, 1951;BARKER and TAUBER, 1951, 1951a, 1954DAVIDSON, 1925;EVANS, 1938;GARMAN and KENNEDY, 1949;HAMSTEAD, 1957, HASEMAN, 1946HUKUSIMA, 1958;MALTAIS, 1951;RODRIGUEZ, 1951RODRIGUEZ, , 1951aRODRIGUEZ, , 1958TAYLOR, APPLE and BERGER, 1952). In addition to these, from a general interest in the effects of growth regulators on plants, considerable studies of gibberellic acid have also been carried out by some workers (EICHMEIER and GUYER, 1960;RODRIGUEZ and CAMPBELL, 1961) in the area of orchard mites and their relationship with the host.…”