- 3 - 



SOME THOUGHTS ON WEED CONTROL IN STRAWBERRIES 



Dominic A. Marini 

 Regional Fruit & Vegetable Spec, Southeast Region 



For 1971, the materials suggested for controlling weeds in 

 strawberry beds are Dacthal*, diphenamid, and Tenoran*. None of 

 these materials controls every weed and none is effective for more 

 than 5 to 6 weeks. These materials are most effective when applied 

 to moist soil followed by about one-half inch of moisture within 

 3 to 4 days. Dacthal* and diphenamid should be applied before emer- 

 gence of weeds, while Tenoran* may be applied either before or soon 

 after emergence, when weeds are less than one-inch tall. 



Dacthal* may be applied immediately after setting plants. It 

 is effective for up to one month and there is no limit on the num- 

 ber of successive applications except that it may not be applied 

 between bloom and harvest of the fruiting year. It is most effec- 

 tive for control of crabgrass and other annual grasses, purslane, 

 chickweed and lamb's quarters. Galinsoga, smartweed and ragweed 

 are not effectively controlled by Dacthal*. A late summer or early 

 fall application of Dacthal* is helpful for controlling chickweed. 



Diphenamid controls weeds for up to 6 weeks. In 

 it was as effective as any other material. It should 

 until plants have become established and have started 

 second application should not be made within 6 months 

 not be applied within 60 days of harvest, 

 ported that it may cause a temporary delay 



1970 trials, 

 not be appl i ed 

 to grow. A 

 and it should 

 Some persons have re- 

 in rooting of runners, 



but this should not affect yields. However, it should not be used 

 on Raritan since there are reports of severe injury to this culti- 

 var in New Jersey. 



ti ve 

 pi i c 

 on e 

 seas 

 trea 

 i nch 

 tall 

 ing 

 cati 

 pi ic 

 sine 

 Jers 



For 



as 

 atio 

 stab 

 on a 

 tmen 



or 

 . I 

 gal i 

 on a 

 atio 

 e th 

 ey. 



seve 

 a pre 

 ns se 

 1 i s h e 

 nd no 

 t, Te 

 1 ess 

 t is 

 nsoga 

 ids i 

 ns in 

 ere a 



ral y 

 -emer 

 emed 

 d pi a 

 t wi t 

 noran 

 tall 

 ef f ec 

 , whi 

 n con 



the 

 re re 



ears 

 gence 

 to do 

 nts w 

 hi n 6 

 * is 

 and a 

 ti ve 

 1 e it 

 trol 1 

 s p r i n 

 ports 



1 n ou 



trea 



a be 



i th n 



day 



most 



nnual 



for c 



is 1 



i ng c 



g of 



of s 



r trial 

 tment , 

 1 1 e r jo 

 ot more 

 s of ha 

 ef f ecti 

 grasse 

 ontrol 1 

 ess eff 

 hickwee 

 the bea 

 e V e r e i 



s , Tenora 

 but in 19 

 b . Tenor 

 than two 

 rvest. A 

 ve when b 

 s are les 

 ing most 

 e c t i V e on 

 d and oth 

 ring year 

 njury and 



n* ap 

 70, p 

 an* s 



appl 

 sap 

 roadl 

 s tha 

 broad 



gras 

 er wi 



are 



redu 



peared 

 ost-eme 

 houl d b 

 i c a t i n 

 ost-eme 

 eaf wee 

 n one-h 

 1 eaf we 

 ses . A 

 nter an 

 not sug 

 c e d y i e 



more effec- 

 rgence ap- 

 e used only 

 s in any 

 rgence 

 ds are one 

 a 1 f inch 

 eds i ncl ud- 

 f a 1 1 a p p 1 i ■ 

 nual s . Ap- 

 gested , 

 Ids in New 



There are a number of different ways that growers can use 

 these herbicides in minimize the amount of cultivation and hoeing 



*Trade name 



