TABLE 13.


VIGOR RATINGS AND NEMATODE COURTS FROM ZOYSIA MATRILLA
IN LAKE WORTH, FLORIDA, TREATED ON FEBRUARY 1, 1964.


Treatment Rate Vigor 1/ Sting Nematodes
 a.i./1000 sq. ft. 4 48 4
 Wks. Wks. Wks. Wks.


1. Bayer 25141 4 ec. 0.4 Ibs. 2 5 27 1
2. Bayer 25141 10~ 0.4 Ibs. 3 5 35 0
3. Zinophos 4 ec. 0.4 Ibs. 3 5 20 0
4. Zinophos 10% 0.4 lbs. 3 5 28 0
5. DBCP 1.5 pts. 3 3 47 38
6. Check -- 2 2 56 47


I/ Vigor rating 0-5 for none to very high population.