Screenshot of table.

Critical Spring Temperatures for Tree Fruit Bud Development Stages

DOWNLOAD FILE

March 30, 2021 - Author: ,

Pome Fruit

Apples

Silver tip

Green Tip

½ inch green

Tight Cluster

First Pink

Full Pink

First Bloom

Full Bloom

Post Bloom

Old temp

16

16

22

27

27

28

28

29

29

10% kill

15

18

23

27

28

28

28

28

28

90% kill

2

10

15

21

24

25

25

25

25

 Pears

Bud Swell

Bud Burst

 

Tight cluster

First White

Full White

First Bloom

Full Bloom

Post Bloom

Old temp

18

23

 

24

28

29

29

29

30

10% kill

15

20

24

25

26

27

28

28

90% kill

0

6

15

19

22

23

24

24

Stone Fruit

 Apricots

Bud Swell

Bud Burst

Red Tip

First White

First Bloom

Full Bloom

In the Shuck

Green Fruit

Old temp

--

23

--

25

--

28

--

31

10% kill

15

20

22

24

25

27

27

28

90% kill

--

0

9

14

19

22

24

25

 Peaches

Bud Swell

Calyx Green

Calyx Red

First Pink

First Bloom

Full Bloom

Post Bloom

 

Old temp

23

--

--

25

--

27

30

 

10% kill

18

21

23

25

26

27

28

90% kill

1

5

9

15

21

24

25

European Plums

Bud Swell

Side White

Tip Green

Tight Cluster

First White

First Bloom

Full Bloom

Post Bloom

Old temp

--

--

--

--

23

27

27

30

10% kill

14

17

20

24

26

27

28

28

90% kill

0

3

7

16

22

23

23

23

Sweet Cherries

Bud Swell

Side Green

Green Tip

Tight Cluster

Open Cluster

First White

First Bloom

Full Bloom

Post Bloom

Old temp

23

23

25

28

28

29

29

29

30

10% kill

17

22

25

26

27

27

28

28

28

90% kill

5

9

14

17

21

24

25

25

25

Tart Cherries

Bud Swell

Side Green

Green Tip

Tight Cluster

Open Cluster

First White

First Bloom

Full Bloom

 

10% kill

15

24

26

26

28

28

28

28

 

90% kill

0

10

22

24

24

24

24

24

Old standard temperature represented the critical temperature in Fahrenheit (the lowest temperature that can be endured for 30 minutes without damage). In addition, the chart shows the temperature at which 10% and 90% of normal buds will be killed. These numbers were taken from Washington (WSU), and Michigan State Unversity (MSU) Extension Bulletins. Apple - WSU EB0913, Pears - WSU EB0978, Sweet Cherries - WSU EB1128, Peaches - WSU EB0914, Apricots - WSU EB1240, Tart Cherries - MSU Research. Rpt. 220.

See Picture Table of Critical Spring Temperatures for Tree Fruit Bud Development Stages

DOWNLOAD FILE

Tags: agriculture, apples, apricots, cherries, european plums, freeze, frost, fruit & nuts, peaches, pears, plums, sweet cherries, tart cherries, tree fruit, tree fruit bud development stages, tree fruit critical temperatures


Authors

Mark Longstroth

Mark Longstroth
longstr7@msu.edu

You Might Also Be Interested In

Accessibility Questions:

For questions about accessibility and/or if you need additional accommodations for a specific document, please send an email to ANR Communications & Marketing at anrcommunications@anr.msu.edu.