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Table 4 The effect of destruxins on C. undecimpunctata (all stages)/50 tomato shrubs after successive post toxin application in tomatoes

From: Effect of destruxin on the population reduction of green peach aphid Myzus persicae (Hemiptera: Aphididae) and the predator Coccinella undecimpunctata (Coleoptera: Coccinellidae) in tomato fields

Post application

(Weeks)

Treatments

Average number of C. undecimpunctata ± SE

 

Control

Destruxin A-760

Destruxin A-724

% increase (+) or decrease (−)*

Just before first Application

18.75 ± 3.36

21.00 ± 2.55

20.00 ± 1,58

Destruxin A-760

Destruxin A-724

One week after last application

22.75 ± 1.70

16.25 ± 2.25

7.5 ± 1.71

– 36.22

– 69.09

Two weeks after last application

19.25 ± 1.54

17.29 ± 1.66

11.5 ± 0.96

– 19.81

– 43.99

Three weeks after last application

17.00 ± 2.12

20.25 ± 1.65

14.25 ± 1.93

+ 6.26

– 21.42

  1. *Percentages of increase or decrease in C. undecimpunctata population density as compared with the check according to Hendrson and Tilton (1955)