Helmut Fritz Van Emden has written:
'Pest control' -- subject(s): Biological control, Control, Environmental aspects, Environmental aspects of Pesticides, Insect pests, Pesticides
'Handbook of agricultural entomology' -- subject(s): Insect pests, Identification
'Pest control and its ecology' -- subject(s): Control, Insect pests
Helmut Fritz was born in 1975.
Fritz Rahmann has written: 'Fritz Rahmann'
Fritz Schwarzbeck has written: 'Fritz Schwarzbeck'
Fritz Meinhard has written: 'Fritz Meinhard'
Fritz Lautenbach has written: '\\'
Fritz Steuber has written: 'Sheridans \\'
Fritz Brandt has written: 'Dampferzeuger'
Fritz Gafner has written: 'Eugen'
Fritz Bartz has written: 'Alaska'
Fritz Ebner has written: 'Goethe'
Fritz Zorn has written: 'Rebellenruf'
Fritz Schaper has written: 'Fritz Schaper' -- subject(s): Exhibitions