Natural enemies of olive scale: Aggressive parasitic wasp promising as means of suppressing olive scale in California orchards

Also in this issue:

Cotton quotas and allotments: Estimated acreage shifts from cotton to other crops in 1954 as result of expected national allotments

Yellow dwarf disease: A new and damaging virus disease of cereals transmitted by aphids

California's wheat: Most of state's wheat of strains developed by backcross breeding

Stump grafting old citrus: Navel orange scions set fruit in fifth growing season following grafting to stumps old old seedling trees

Water spot on navel oranges: Only slight injury observed in orchards treated with parathion for California red scale control

Lemon cuttings with fruit rooted: Means of prolonging useful life of lemon fruits developed at Riverside valuable aid in research

Leaf drop in citrus: Excessive fall regardless of cause may lower soluble solids in fruit

Systemic pesticides on walnut: Preliminary studies promising for control of European red mite and walnut aphid in southern California

Zutano avocado cuttincrs rooted: Leafy-twig cuttings of vigorous Mexican variety 'readily rooted without special procedures or hormone treatments

Chlorosis in ornamentals: Control of lime-induced chlorosis by soil applications of chelated iron can be effective

Rooting bed test: Soil conditioner in nursing bed eased chrysanthemum transplanting

Harvesting sutter pink beans: Effects of field exposure on change of color may be reduced by early harvesting and threshing

Reproduction without males in aseptic root cultures of the root-knot nematode

Development of the root-knot nematode as affected by temperature