Ptcris, ( cont. ) 



number used in experiment 



popular species 



summer care 



watering 



window exposure 



Questionnaire used in study 



Scale insects on 

 Boston fern 



Soil insects and lower animals 



Soils used, general 



Soils used, selected plants, 

 African violet 

 begonia 

 cordyline 

 dracaena 

 gardenia 



Summer care of house plants, 

 selected, 



• African violets 

 begonia 

 Boston fern 

 browallia 



chrysanthemum pot plants 

 cordyline 

 cyclamen 

 dracaena 

 gardenia 

 gloxinia 

 manettia 

 primrose, baby 

 pteris 



Table fern, sec ptcris 



Tarnished plant bug 



Thrips on 

 begonia 

 browallia 



Temperatures, day and night 



15 

 20 

 32 

 35 

 37 



18 

 23 

 25 

 27 

 29 

 33 

 35 

 36 



Water 5 



Water for houseplants, selected 



African violet 16 



begonia 21 



Boston fern 24 



browallia 26 



cordyline 32 

 cyclamen 33-34 



dracaena 36 



gardenia 38 



gloxinia 40 



manettia 41 



primrose, baby 44 



pteris 46 



White flv, control 13 



Fifty 



