is derris dust harmful to humans（関連順）

0:24

How to Kill Insects in Your Garden with Sevin Ready to Use Dust

GardenTech

111,608 回視聴 - 6 年前

0:20

Derris Trifoliata Extract Powder

张晓瑜

51 回視聴 - 1 年前

2:15

How to Effectively & Wisely Use Garden Insect Dusts: Dust On/Dust Off -TRG 2014

Gary Pilarchik (The Rusted Garden)

57,623 回視聴 - 10 年前

4:53

BAKING SODA Powerful ORGANIC Pesticide Mix!

The Balcony Gardener

658,047 回視聴 - 3 年前

2:04

A Better way to apply seven dust/insecticide powder to your garden.

Tennesseeman20

81,925 回視聴 - 8 年前

14:13

DIY Pest Spray Just Like a Professional - Inside, Outside, & Garage

Dan The Bug Man

348,622 回視聴 - 2 年前

2:31

How to Use Viper Insect Dust to Kill Garden Pests!

Solutions Pest & Lawn

1,461 回視聴 - 1 年前

2:35

Derris Lewis: Not Built to Break

TheColumbusDispatch

1,901 回視聴 - 5 年前

2:56

Control whitefly with this three-pronged attack | Pest and disease control | Gardening Australia

Pesticide Control

5 Vegetable Pest Management

Farming God's Way

7,738 回視聴 - 5 年前

21:20

Arthropod Pest Management

Dr. Denise DeBusk

861 回視聴 - 3 年前

57:14

Lake Management, are chemicals bad?

InformativeFisherman

3,125 回視聴 - 5 年前

27:25

Natural Pesticide|Tobacco|Pyrethrum #naturalpesticides #tobacco #pyrethrum

JITENDRA PATEL

981 回視聴 - 3 年前

14:36

Classification of insecticides based on 'mode of action' (Chemical Nature) - Dr. Kalpana Sharma.

SPCGCA Zoology Department

1,638 回視聴 - 3 年前

4:26

Natural Ways to Kill Bugs in Your Vegetable Garden

Garden & Lawn

60 回視聴 - 5 年前

9:59

Get Rid of Pest Caterpillars In The Garden Once And For All!

MIgardener

568,118 回視聴 - 8 年前

9:03

Does Organic Slug Control Really Work?

Alberta Urban Garden Simple Organic and Sustainable

102,256 回視聴 - 8 年前

48:54

Botanical Insecticides , Advantages of Botanical Insecticides , Potential plant derivatives

SHAMIM REZA

60 回視聴 - 1 年前

16:10

Mod-06 Lec-26 Pest management through botanicals (contd)

nptelhrd

3,440 回視聴 - 8 年前

結果 : is derris dust harmful to humans