study, as did its daughter Veestar. A relation- 

 ship was also apparent with the susceptible 

 cultivars. Kent and Mic Mac for example, were 

 highly susceptible to tarnished plant bug, and 

 both have Tioga as a parent. 



Based on the results of this study, should we 

 all plant Honeoye and Sparkle and reduce insec- 

 ticide sprays for tarnished plant bug? No. Well, 

 not yet anyway. Although the results are prom- 

 ising, it is not known if similar results could be 

 expected in large blocks of single cultivars which 

 are typical of commercial plantings. Further- 

 more, it is important to remember that factors 

 other than tarnished plant bug must be taken 

 into account when selecting cultivars. Honeoye 



for example, is highly susceptible to red stele 

 root rot, and Sparkle chronically has had prob- 

 lems with poor fruit size and firmness. 



Further testing of tarnished plant bug resis- 

 tance is underway, funded by the USDA Low 

 Input and Sustainable Agriculture Project, 

 which may provide more insight into its poten- 

 tial for strawberries. Resistance to tarnished 

 plant bug is being used in other crop plants , such 

 as cotton and alfalfa. The differences observed 

 among strawberries in this study suggest that 

 resistance occurs in this crop as well, and with 

 careful breeding and selection, may offer an 

 important means of reducing tarnished plant 

 bug injury. 



This article was reprinted with permission from Northeast LISA Small Fruits Newsletter 2(2) A-5. 

 For information about Northeast LISA Small Fruits Newsletter, contact David Marchant, Depart- 

 ment of Plant Pathology, Fernald Hall, University of Massachusetts, Amherst, MA 01003 (tele- 

 phone: 413-545-0179). 



*vj> vL» vL» *A* 

 #T» *t* *T^ *T* 



Observations from the 1991 

 Massachusetts Apple Integrated 

 Pest Management Program 



Kathleen P. Leahy 



Department of Entomology, University of Massachusetts 



The Apple Integrated Pest Management 

 (IPM) Program in Massachusetts participated 

 in the Second-level Apple IPM Project. During 

 the season 24 orchard blocks were scouted rang- 

 ing in size from four to ten acres each. Six of 

 these blocks were in a transitional phase be- 

 tween standard IPM and second-level IPM, six 

 of the blocks were managed under full second- 

 level IPM, and the remaining twelve blocks were 

 managed using standard IPM practices. In 

 these blocks, the primary cultivar was Mcin- 



tosh; however, significant numbers of Cortland 

 and Delicious trees were included. Small num- 

 bers of Golden Delicious, Paulared, Empire, 

 Mutsu, Early Mcintosh, and Spartan trees were 

 also present. 



Mites 



Owing to a high rate of survival from the 

 very mild winter in 1990-91, mites were the 

 most problematic pest in Massachusetts this 



Fruit Notes, Winter, 1992 



